219902991

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{6389}}^1$

素因数の和:6559

約数の個数: 32

約数和(自身を含む): 368064000

約数和(自身を除く): 148161009

約数列:

[1, 3, 7, 11, 21, 33, 77, 149, 231, 447, 1043, 1639, 3129, 4917, 6389, 11473, 19167, 34419, 44723, 70279, 134169, 210837, 491953, 951961, 1475859, 2855883, 6663727, 10471571, 19991181, 31414713, 73300997, 219902991]

約数ペア:

[(1, 219902991), (3, 73300997), (7, 31414713), (11, 19991181), (21, 10471571), (33, 6663727), (77, 2855883), (149, 1475859), (231, 951961), (447, 491953), (1043, 210837), (1639, 134169), (3129, 70279), (4917, 44723), (6389, 34419), (11473, 19167)]