20121309138

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{977}}^1\times {\mathrm{70051}}^1$

素因数の和:71047

約数の個数: 48

約数和(自身を含む): 46861425504

約数和(自身を除く): 26740116366

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 977, 1954, 2931, 5862, 6839, 13678, 20517, 41034, 47873, 70051, 95746, 140102, 143619, 210153, 287238, 420306, 490357, 980714, 1471071, 2942142, 3432499, 6864998, 10297497, 20594994, 68439827, 136879654, 205319481, 410638962, 479078789, 958157578, 1437236367, 2874472734, 3353551523, 6707103046, 10060654569, 20121309138]

約数ペア:

[(1, 20121309138), (2, 10060654569), (3, 6707103046), (6, 3353551523), (7, 2874472734), (14, 1437236367), (21, 958157578), (42, 479078789), (49, 410638962), (98, 205319481), (147, 136879654), (294, 68439827), (977, 20594994), (1954, 10297497), (2931, 6864998), (5862, 3432499), (6839, 2942142), (13678, 1471071), (20517, 980714), (41034, 490357), (47873, 420306), (70051, 287238), (95746, 210153), (140102, 143619)]