21676494

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:277

約数の個数: 64

約数和(自身を含む): 51609600

約数和(自身を除く): 29933106

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 79, 94, 139, 141, 158, 237, 278, 282, 329, 417, 474, 553, 658, 834, 973, 987, 1106, 1659, 1946, 1974, 2919, 3318, 3713, 5838, 6533, 7426, 10981, 11139, 13066, 19599, 21962, 22278, 25991, 32943, 39198, 45731, 51982, 65886, 76867, 77973, 91462, 137193, 153734, 155946, 230601, 274386, 461202, 516107, 1032214, 1548321, 3096642, 3612749, 7225498, 10838247, 21676494]

約数ペア:

[(1, 21676494), (2, 10838247), (3, 7225498), (6, 3612749), (7, 3096642), (14, 1548321), (21, 1032214), (42, 516107), (47, 461202), (79, 274386), (94, 230601), (139, 155946), (141, 153734), (158, 137193), (237, 91462), (278, 77973), (282, 76867), (329, 65886), (417, 51982), (474, 45731), (553, 39198), (658, 32943), (834, 25991), (973, 22278), (987, 21962), (1106, 19599), (1659, 13066), (1946, 11139), (1974, 10981), (2919, 7426), (3318, 6533), (3713, 5838)]