21754356

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{631}}^1$

素因数の和:681

約数の個数: 72

約数和(自身を含む): 58290624

約数和(自身を除く): 36536268

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 51, 52, 68, 78, 102, 156, 169, 204, 221, 338, 442, 507, 631, 663, 676, 884, 1014, 1262, 1326, 1893, 2028, 2524, 2652, 2873, 3786, 5746, 7572, 8203, 8619, 10727, 11492, 16406, 17238, 21454, 24609, 32181, 32812, 34476, 42908, 49218, 64362, 98436, 106639, 128724, 139451, 213278, 278902, 319917, 418353, 426556, 557804, 639834, 836706, 1279668, 1673412, 1812863, 3625726, 5438589, 7251452, 10877178, 21754356]

約数ペア:

[(1, 21754356), (2, 10877178), (3, 7251452), (4, 5438589), (6, 3625726), (12, 1812863), (13, 1673412), (17, 1279668), (26, 836706), (34, 639834), (39, 557804), (51, 426556), (52, 418353), (68, 319917), (78, 278902), (102, 213278), (156, 139451), (169, 128724), (204, 106639), (221, 98436), (338, 64362), (442, 49218), (507, 42908), (631, 34476), (663, 32812), (676, 32181), (884, 24609), (1014, 21454), (1262, 17238), (1326, 16406), (1893, 11492), (2028, 10727), (2524, 8619), (2652, 8203), (2873, 7572), (3786, 5746)]