21471198

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 51148800

約数和(自身を除く): 29677602

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 73, 94, 141, 146, 149, 219, 282, 298, 329, 438, 447, 511, 658, 894, 987, 1022, 1043, 1533, 1974, 2086, 3066, 3129, 3431, 6258, 6862, 7003, 10293, 10877, 14006, 20586, 21009, 21754, 24017, 32631, 42018, 48034, 49021, 65262, 72051, 76139, 98042, 144102, 147063, 152278, 228417, 294126, 456834, 511219, 1022438, 1533657, 3067314, 3578533, 7157066, 10735599, 21471198]

約数ペア:

[(1, 21471198), (2, 10735599), (3, 7157066), (6, 3578533), (7, 3067314), (14, 1533657), (21, 1022438), (42, 511219), (47, 456834), (73, 294126), (94, 228417), (141, 152278), (146, 147063), (149, 144102), (219, 98042), (282, 76139), (298, 72051), (329, 65262), (438, 49021), (447, 48034), (511, 42018), (658, 32631), (894, 24017), (987, 21754), (1022, 21009), (1043, 20586), (1533, 14006), (1974, 10877), (2086, 10293), (3066, 7003), (3129, 6862), (3431, 6258)]