21710178

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3251}}^1$

素因数の和:3319

約数の個数: 48

約数和(自身を含む): 54789696

約数和(自身を除く): 33079518

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 53, 63, 106, 126, 159, 318, 371, 477, 742, 954, 1113, 2226, 3251, 3339, 6502, 6678, 9753, 19506, 22757, 29259, 45514, 58518, 68271, 136542, 172303, 204813, 344606, 409626, 516909, 1033818, 1206121, 1550727, 2412242, 3101454, 3618363, 7236726, 10855089, 21710178]

約数ペア:

[(1, 21710178), (2, 10855089), (3, 7236726), (6, 3618363), (7, 3101454), (9, 2412242), (14, 1550727), (18, 1206121), (21, 1033818), (42, 516909), (53, 409626), (63, 344606), (106, 204813), (126, 172303), (159, 136542), (318, 68271), (371, 58518), (477, 45514), (742, 29259), (954, 22757), (1113, 19506), (2226, 9753), (3251, 6678), (3339, 6502)]