18051228

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:105

約数の個数: 144

約数和(自身を含む): 54109440

約数和(自身を除く): 36058212

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 23, 26, 27, 36, 39, 43, 46, 52, 54, 69, 78, 86, 92, 108, 117, 129, 138, 156, 169, 172, 207, 234, 258, 276, 299, 338, 351, 387, 414, 468, 507, 516, 559, 598, 621, 676, 702, 774, 828, 897, 989, 1014, 1118, 1161, 1196, 1242, 1404, 1521, 1548, 1677, 1794, 1978, 2028, 2236, 2322, 2484, 2691, 2967, 3042, 3354, 3588, 3887, 3956, 4563, 4644, 5031, 5382, 5934, 6084, 6708, 7267, 7774, 8073, 8901, 9126, 10062, 10764, 11661, 11868, 12857, 14534, 15093, 15548, 16146, 17802, 18252, 20124, 21801, 23322, 25714, 26703, 29068, 30186, 32292, 34983, 35604, 38571, 43602, 46644, 51428, 53406, 60372, 65403, 69966, 77142, 87204, 104949, 106812, 115713, 130806, 139932, 154284, 167141, 196209, 209898, 231426, 261612, 334282, 347139, 392418, 419796, 462852, 501423, 668564, 694278, 784836, 1002846, 1388556, 1504269, 2005692, 3008538, 4512807, 6017076, 9025614, 18051228]

約数ペア:

[(1, 18051228), (2, 9025614), (3, 6017076), (4, 4512807), (6, 3008538), (9, 2005692), (12, 1504269), (13, 1388556), (18, 1002846), (23, 784836), (26, 694278), (27, 668564), (36, 501423), (39, 462852), (43, 419796), (46, 392418), (52, 347139), (54, 334282), (69, 261612), (78, 231426), (86, 209898), (92, 196209), (108, 167141), (117, 154284), (129, 139932), (138, 130806), (156, 115713), (169, 106812), (172, 104949), (207, 87204), (234, 77142), (258, 69966), (276, 65403), (299, 60372), (338, 53406), (351, 51428), (387, 46644), (414, 43602), (468, 38571), (507, 35604), (516, 34983), (559, 32292), (598, 30186), (621, 29068), (676, 26703), (702, 25714), (774, 23322), (828, 21801), (897, 20124), (989, 18252), (1014, 17802), (1118, 16146), (1161, 15548), (1196, 15093), (1242, 14534), (1404, 12857), (1521, 11868), (1548, 11661), (1677, 10764), (1794, 10062), (1978, 9126), (2028, 8901), (2236, 8073), (2322, 7774), (2484, 7267), (2691, 6708), (2967, 6084), (3042, 5934), (3354, 5382), (3588, 5031), (3887, 4644), (3956, 4563)]