21118968

素因数分解:

$2^3\times 3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:163

約数の個数: 160

約数和(自身を含む): 67082400

約数和(自身を除く): 45963432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 23, 24, 26, 27, 36, 39, 46, 52, 54, 69, 72, 78, 81, 92, 104, 108, 109, 117, 138, 156, 162, 184, 207, 216, 218, 234, 276, 299, 312, 324, 327, 351, 414, 436, 468, 552, 598, 621, 648, 654, 702, 828, 872, 897, 936, 981, 1053, 1196, 1242, 1308, 1404, 1417, 1656, 1794, 1863, 1962, 2106, 2392, 2484, 2507, 2616, 2691, 2808, 2834, 2943, 3588, 3726, 3924, 4212, 4251, 4968, 5014, 5382, 5668, 5886, 7176, 7452, 7521, 7848, 8073, 8424, 8502, 8829, 10028, 10764, 11336, 11772, 12753, 14904, 15042, 16146, 17004, 17658, 20056, 21528, 22563, 23544, 24219, 25506, 30084, 32292, 32591, 34008, 35316, 38259, 45126, 48438, 51012, 60168, 64584, 65182, 67689, 70632, 76518, 90252, 96876, 97773, 102024, 114777, 130364, 135378, 153036, 180504, 193752, 195546, 203067, 229554, 260728, 270756, 293319, 306072, 391092, 406134, 459108, 541512, 586638, 782184, 812268, 879957, 918216, 1173276, 1624536, 1759914, 2346552, 2639871, 3519828, 5279742, 7039656, 10559484, 21118968]

約数ペア:

[(1, 21118968), (2, 10559484), (3, 7039656), (4, 5279742), (6, 3519828), (8, 2639871), (9, 2346552), (12, 1759914), (13, 1624536), (18, 1173276), (23, 918216), (24, 879957), (26, 812268), (27, 782184), (36, 586638), (39, 541512), (46, 459108), (52, 406134), (54, 391092), (69, 306072), (72, 293319), (78, 270756), (81, 260728), (92, 229554), (104, 203067), (108, 195546), (109, 193752), (117, 180504), (138, 153036), (156, 135378), (162, 130364), (184, 114777), (207, 102024), (216, 97773), (218, 96876), (234, 90252), (276, 76518), (299, 70632), (312, 67689), (324, 65182), (327, 64584), (351, 60168), (414, 51012), (436, 48438), (468, 45126), (552, 38259), (598, 35316), (621, 34008), (648, 32591), (654, 32292), (702, 30084), (828, 25506), (872, 24219), (897, 23544), (936, 22563), (981, 21528), (1053, 20056), (1196, 17658), (1242, 17004), (1308, 16146), (1404, 15042), (1417, 14904), (1656, 12753), (1794, 11772), (1863, 11336), (1962, 10764), (2106, 10028), (2392, 8829), (2484, 8502), (2507, 8424), (2616, 8073), (2691, 7848), (2808, 7521), (2834, 7452), (2943, 7176), (3588, 5886), (3726, 5668), (3924, 5382), (4212, 5014), (4251, 4968)]