21155358

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1531}}^1$

素因数の和:1597

約数の個数: 48

約数和(自身を含む): 50298624

約数和(自身を除く): 29143266

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 49, 94, 98, 141, 147, 282, 294, 329, 658, 987, 1531, 1974, 2303, 3062, 4593, 4606, 6909, 9186, 10717, 13818, 21434, 32151, 64302, 71957, 75019, 143914, 150038, 215871, 225057, 431742, 450114, 503699, 1007398, 1511097, 3022194, 3525893, 7051786, 10577679, 21155358]

約数ペア:

[(1, 21155358), (2, 10577679), (3, 7051786), (6, 3525893), (7, 3022194), (14, 1511097), (21, 1007398), (42, 503699), (47, 450114), (49, 431742), (94, 225057), (98, 215871), (141, 150038), (147, 143914), (282, 75019), (294, 71957), (329, 64302), (658, 32151), (987, 21434), (1531, 13818), (1974, 10717), (2303, 9186), (3062, 6909), (4593, 4606)]