21690312

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:171

約数の個数: 128

約数和(自身を含む): 65802240

約数和(自身を除く): 44111928

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 41, 42, 47, 56, 67, 82, 84, 94, 123, 134, 141, 164, 168, 188, 201, 246, 268, 282, 287, 328, 329, 376, 402, 469, 492, 536, 564, 574, 658, 804, 861, 938, 984, 987, 1128, 1148, 1316, 1407, 1608, 1722, 1876, 1927, 1974, 2296, 2632, 2747, 2814, 3149, 3444, 3752, 3854, 3948, 5494, 5628, 5781, 6298, 6888, 7708, 7896, 8241, 9447, 10988, 11256, 11562, 12596, 13489, 15416, 16482, 18894, 19229, 21976, 22043, 23124, 25192, 26978, 32964, 37788, 38458, 40467, 44086, 46248, 53956, 57687, 65928, 66129, 75576, 76916, 80934, 88172, 107912, 115374, 129109, 132258, 153832, 161868, 176344, 230748, 258218, 264516, 323736, 387327, 461496, 516436, 529032, 774654, 903763, 1032872, 1549308, 1807526, 2711289, 3098616, 3615052, 5422578, 7230104, 10845156, 21690312]

約数ペア:

[(1, 21690312), (2, 10845156), (3, 7230104), (4, 5422578), (6, 3615052), (7, 3098616), (8, 2711289), (12, 1807526), (14, 1549308), (21, 1032872), (24, 903763), (28, 774654), (41, 529032), (42, 516436), (47, 461496), (56, 387327), (67, 323736), (82, 264516), (84, 258218), (94, 230748), (123, 176344), (134, 161868), (141, 153832), (164, 132258), (168, 129109), (188, 115374), (201, 107912), (246, 88172), (268, 80934), (282, 76916), (287, 75576), (328, 66129), (329, 65928), (376, 57687), (402, 53956), (469, 46248), (492, 44086), (536, 40467), (564, 38458), (574, 37788), (658, 32964), (804, 26978), (861, 25192), (938, 23124), (984, 22043), (987, 21976), (1128, 19229), (1148, 18894), (1316, 16482), (1407, 15416), (1608, 13489), (1722, 12596), (1876, 11562), (1927, 11256), (1974, 10988), (2296, 9447), (2632, 8241), (2747, 7896), (2814, 7708), (3149, 6888), (3444, 6298), (3752, 5781), (3854, 5628), (3948, 5494)]