20421594

素因数分解:

$2^1\times 3^2\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{239}}^1$

素因数の和:395

約数の個数: 48

約数和(自身を含む): 45826560

約数和(自身を除く): 25404966

約数列:

[1, 2, 3, 6, 9, 18, 47, 94, 101, 141, 202, 239, 282, 303, 423, 478, 606, 717, 846, 909, 1434, 1818, 2151, 4302, 4747, 9494, 11233, 14241, 22466, 24139, 28482, 33699, 42723, 48278, 67398, 72417, 85446, 101097, 144834, 202194, 217251, 434502, 1134533, 2269066, 3403599, 6807198, 10210797, 20421594]

約数ペア:

[(1, 20421594), (2, 10210797), (3, 6807198), (6, 3403599), (9, 2269066), (18, 1134533), (47, 434502), (94, 217251), (101, 202194), (141, 144834), (202, 101097), (239, 85446), (282, 72417), (303, 67398), (423, 48278), (478, 42723), (606, 33699), (717, 28482), (846, 24139), (909, 22466), (1434, 14241), (1818, 11233), (2151, 9494), (4302, 4747)]