21122892

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{769}}^1$

素因数の和:895

約数の個数: 72

約数和(自身を含む): 61661600

約数和(自身を除く): 40538708

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 109, 126, 218, 252, 327, 436, 654, 763, 769, 981, 1308, 1526, 1538, 1962, 2289, 2307, 3052, 3076, 3924, 4578, 4614, 5383, 6867, 6921, 9156, 9228, 10766, 13734, 13842, 16149, 21532, 27468, 27684, 32298, 48447, 64596, 83821, 96894, 167642, 193788, 251463, 335284, 502926, 586747, 754389, 1005852, 1173494, 1508778, 1760241, 2346988, 3017556, 3520482, 5280723, 7040964, 10561446, 21122892]

約数ペア:

[(1, 21122892), (2, 10561446), (3, 7040964), (4, 5280723), (6, 3520482), (7, 3017556), (9, 2346988), (12, 1760241), (14, 1508778), (18, 1173494), (21, 1005852), (28, 754389), (36, 586747), (42, 502926), (63, 335284), (84, 251463), (109, 193788), (126, 167642), (218, 96894), (252, 83821), (327, 64596), (436, 48447), (654, 32298), (763, 27684), (769, 27468), (981, 21532), (1308, 16149), (1526, 13842), (1538, 13734), (1962, 10766), (2289, 9228), (2307, 9156), (3052, 6921), (3076, 6867), (3924, 5383), (4578, 4614)]