21298212

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2677}}^1$

素因数の和:2717

約数の個数: 72

約数和(自身を含む): 61411896

約数和(自身を除く): 40113684

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 51, 52, 68, 78, 102, 117, 153, 156, 204, 221, 234, 306, 442, 468, 612, 663, 884, 1326, 1989, 2652, 2677, 3978, 5354, 7956, 8031, 10708, 16062, 24093, 32124, 34801, 45509, 48186, 69602, 91018, 96372, 104403, 136527, 139204, 182036, 208806, 273054, 313209, 409581, 417612, 546108, 591617, 626418, 819162, 1183234, 1252836, 1638324, 1774851, 2366468, 3549702, 5324553, 7099404, 10649106, 21298212]

約数ペア:

[(1, 21298212), (2, 10649106), (3, 7099404), (4, 5324553), (6, 3549702), (9, 2366468), (12, 1774851), (13, 1638324), (17, 1252836), (18, 1183234), (26, 819162), (34, 626418), (36, 591617), (39, 546108), (51, 417612), (52, 409581), (68, 313209), (78, 273054), (102, 208806), (117, 182036), (153, 139204), (156, 136527), (204, 104403), (221, 96372), (234, 91018), (306, 69602), (442, 48186), (468, 45509), (612, 34801), (663, 32124), (884, 24093), (1326, 16062), (1989, 10708), (2652, 8031), (2677, 7956), (3978, 5354)]