18579704

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 41580000

約数和(自身を除く): 23000296

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 109, 143, 149, 218, 286, 298, 436, 572, 596, 872, 1144, 1192, 1199, 1417, 1639, 1937, 2398, 2834, 3278, 3874, 4796, 5668, 6556, 7748, 9592, 11336, 13112, 15496, 15587, 16241, 21307, 31174, 32482, 42614, 62348, 64964, 85228, 124696, 129928, 170456, 178651, 211133, 357302, 422266, 714604, 844532, 1429208, 1689064, 2322463, 4644926, 9289852, 18579704]

約数ペア:

[(1, 18579704), (2, 9289852), (4, 4644926), (8, 2322463), (11, 1689064), (13, 1429208), (22, 844532), (26, 714604), (44, 422266), (52, 357302), (88, 211133), (104, 178651), (109, 170456), (143, 129928), (149, 124696), (218, 85228), (286, 64964), (298, 62348), (436, 42614), (572, 32482), (596, 31174), (872, 21307), (1144, 16241), (1192, 15587), (1199, 15496), (1417, 13112), (1639, 11336), (1937, 9592), (2398, 7748), (2834, 6556), (3278, 5668), (3874, 4796)]