18755828

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{433}}^1$

素因数の和:481

約数の個数: 72

約数和(自身を含む): 43637832

約数和(自身を除く): 24882004

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 49, 52, 68, 91, 98, 119, 182, 196, 221, 238, 364, 433, 442, 476, 637, 833, 866, 884, 1274, 1547, 1666, 1732, 2548, 3031, 3094, 3332, 5629, 6062, 6188, 7361, 10829, 11258, 12124, 14722, 21217, 21658, 22516, 29444, 39403, 42434, 43316, 51527, 78806, 84868, 95693, 103054, 157612, 191386, 206108, 275821, 360689, 382772, 551642, 669851, 721378, 1103284, 1339702, 1442756, 2679404, 4688957, 9377914, 18755828]

約数ペア:

[(1, 18755828), (2, 9377914), (4, 4688957), (7, 2679404), (13, 1442756), (14, 1339702), (17, 1103284), (26, 721378), (28, 669851), (34, 551642), (49, 382772), (52, 360689), (68, 275821), (91, 206108), (98, 191386), (119, 157612), (182, 103054), (196, 95693), (221, 84868), (238, 78806), (364, 51527), (433, 43316), (442, 42434), (476, 39403), (637, 29444), (833, 22516), (866, 21658), (884, 21217), (1274, 14722), (1547, 12124), (1666, 11258), (1732, 10829), (2548, 7361), (3031, 6188), (3094, 6062), (3332, 5629)]