5219991

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:476

約数の個数: 32

約数和(自身を含む): 8985600

約数和(自身を除く): 3765609

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 189, 213, 389, 497, 639, 1167, 1491, 1917, 2723, 3501, 4473, 8169, 10503, 13419, 24507, 27619, 73521, 82857, 193333, 248571, 579999, 745713, 1739997, 5219991]

約数ペア:

[(1, 5219991), (3, 1739997), (7, 745713), (9, 579999), (21, 248571), (27, 193333), (63, 82857), (71, 73521), (189, 27619), (213, 24507), (389, 13419), (497, 10503), (639, 8169), (1167, 4473), (1491, 3501), (1917, 2723)]