21597156

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{85703}}^1$

素因数の和:85720

約数の個数: 36

約数和(自身を含む): 62392512

約数和(自身を除く): 40795356

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 85703, 171406, 257109, 342812, 514218, 599921, 771327, 1028436, 1199842, 1542654, 1799763, 2399684, 3085308, 3599526, 5399289, 7199052, 10798578, 21597156]

約数ペア:

[(1, 21597156), (2, 10798578), (3, 7199052), (4, 5399289), (6, 3599526), (7, 3085308), (9, 2399684), (12, 1799763), (14, 1542654), (18, 1199842), (21, 1028436), (28, 771327), (36, 599921), (42, 514218), (63, 342812), (84, 257109), (126, 171406), (252, 85703)]