18771896

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{269}}^1$

素因数の和:360

約数の個数: 64

約数和(自身を含む): 42184800

約数和(自身を除く): 23412904

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 61, 88, 104, 122, 143, 244, 269, 286, 488, 538, 572, 671, 793, 1076, 1144, 1342, 1586, 2152, 2684, 2959, 3172, 3497, 5368, 5918, 6344, 6994, 8723, 11836, 13988, 16409, 17446, 23672, 27976, 32818, 34892, 38467, 65636, 69784, 76934, 131272, 153868, 180499, 213317, 307736, 360998, 426634, 721996, 853268, 1443992, 1706536, 2346487, 4692974, 9385948, 18771896]

約数ペア:

[(1, 18771896), (2, 9385948), (4, 4692974), (8, 2346487), (11, 1706536), (13, 1443992), (22, 853268), (26, 721996), (44, 426634), (52, 360998), (61, 307736), (88, 213317), (104, 180499), (122, 153868), (143, 131272), (244, 76934), (269, 69784), (286, 65636), (488, 38467), (538, 34892), (572, 32818), (671, 27976), (793, 23672), (1076, 17446), (1144, 16409), (1342, 13988), (1586, 11836), (2152, 8723), (2684, 6994), (2959, 6344), (3172, 5918), (3497, 5368)]