1998900414

素因数分解:

$2^1\times 3^2\times 7^3\times {\mathrm{569}}^2$

素因数の和:1167

約数の個数: 72

約数和(自身を含む): 5059563600

約数和(自身を除く): 3060663186

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 147, 294, 343, 441, 569, 686, 882, 1029, 1138, 1707, 2058, 3087, 3414, 3983, 5121, 6174, 7966, 10242, 11949, 23898, 27881, 35847, 55762, 71694, 83643, 167286, 195167, 250929, 323761, 390334, 501858, 585501, 647522, 971283, 1171002, 1756503, 1942566, 2266327, 2913849, 3513006, 4532654, 5827698, 6798981, 13597962, 15864289, 20396943, 31728578, 40793886, 47592867, 95185734, 111050023, 142778601, 222100046, 285557202, 333150069, 666300138, 999450207, 1998900414]

約数ペア:

[(1, 1998900414), (2, 999450207), (3, 666300138), (6, 333150069), (7, 285557202), (9, 222100046), (14, 142778601), (18, 111050023), (21, 95185734), (42, 47592867), (49, 40793886), (63, 31728578), (98, 20396943), (126, 15864289), (147, 13597962), (294, 6798981), (343, 5827698), (441, 4532654), (569, 3513006), (686, 2913849), (882, 2266327), (1029, 1942566), (1138, 1756503), (1707, 1171002), (2058, 971283), (3087, 647522), (3414, 585501), (3983, 501858), (5121, 390334), (6174, 323761), (7966, 250929), (10242, 195167), (11949, 167286), (23898, 83643), (27881, 71694), (35847, 55762)]