20649906

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1609}}^1$

素因数の和:1671

約数の個数: 48

約数和(自身を含む): 48222720

約数和(自身を除く): 27572814

約数列:

[1, 2, 3, 6, 9, 18, 23, 31, 46, 62, 69, 93, 138, 186, 207, 279, 414, 558, 713, 1426, 1609, 2139, 3218, 4278, 4827, 6417, 9654, 12834, 14481, 28962, 37007, 49879, 74014, 99758, 111021, 149637, 222042, 299274, 333063, 448911, 666126, 897822, 1147217, 2294434, 3441651, 6883302, 10324953, 20649906]

約数ペア:

[(1, 20649906), (2, 10324953), (3, 6883302), (6, 3441651), (9, 2294434), (18, 1147217), (23, 897822), (31, 666126), (46, 448911), (62, 333063), (69, 299274), (93, 222042), (138, 149637), (186, 111021), (207, 99758), (279, 74014), (414, 49879), (558, 37007), (713, 28962), (1426, 14481), (1609, 12834), (2139, 9654), (3218, 6417), (4278, 4827)]