21797712

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:321

約数の個数: 120

約数和(自身を含む): 66543360

約数和(自身を除く): 44745648

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 31, 36, 38, 48, 57, 62, 72, 76, 93, 114, 124, 144, 152, 171, 186, 228, 248, 257, 279, 304, 342, 372, 456, 496, 514, 558, 589, 684, 744, 771, 912, 1028, 1116, 1178, 1368, 1488, 1542, 1767, 2056, 2232, 2313, 2356, 2736, 3084, 3534, 4112, 4464, 4626, 4712, 4883, 5301, 6168, 7068, 7967, 9252, 9424, 9766, 10602, 12336, 14136, 14649, 15934, 18504, 19532, 21204, 23901, 28272, 29298, 31868, 37008, 39064, 42408, 43947, 47802, 58596, 63736, 71703, 78128, 84816, 87894, 95604, 117192, 127472, 143406, 151373, 175788, 191208, 234384, 286812, 302746, 351576, 382416, 454119, 573624, 605492, 703152, 908238, 1147248, 1210984, 1362357, 1816476, 2421968, 2724714, 3632952, 5449428, 7265904, 10898856, 21797712]

約数ペア:

[(1, 21797712), (2, 10898856), (3, 7265904), (4, 5449428), (6, 3632952), (8, 2724714), (9, 2421968), (12, 1816476), (16, 1362357), (18, 1210984), (19, 1147248), (24, 908238), (31, 703152), (36, 605492), (38, 573624), (48, 454119), (57, 382416), (62, 351576), (72, 302746), (76, 286812), (93, 234384), (114, 191208), (124, 175788), (144, 151373), (152, 143406), (171, 127472), (186, 117192), (228, 95604), (248, 87894), (257, 84816), (279, 78128), (304, 71703), (342, 63736), (372, 58596), (456, 47802), (496, 43947), (514, 42408), (558, 39064), (589, 37008), (684, 31868), (744, 29298), (771, 28272), (912, 23901), (1028, 21204), (1116, 19532), (1178, 18504), (1368, 15934), (1488, 14649), (1542, 14136), (1767, 12336), (2056, 10602), (2232, 9766), (2313, 9424), (2356, 9252), (2736, 7967), (3084, 7068), (3534, 6168), (4112, 5301), (4464, 4883), (4626, 4712)]