21031607975

素因数分解:

$5^2\times 7^1\times {\mathrm{1321}}^1\times {\mathrm{90977}}^1$

素因数の和:92315

約数の個数: 24

約数和(自身を含む): 29827683168

約数和(自身を除く): 8796075193

約数列:

[1, 5, 7, 25, 35, 175, 1321, 6605, 9247, 33025, 46235, 90977, 231175, 454885, 636839, 2274425, 3184195, 15920975, 120180617, 600903085, 841264319, 3004515425, 4206321595, 21031607975]

約数ペア:

[(1, 21031607975), (5, 4206321595), (7, 3004515425), (25, 841264319), (35, 600903085), (175, 120180617), (1321, 15920975), (6605, 3184195), (9247, 2274425), (33025, 636839), (46235, 454885), (90977, 231175)]