661902073

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{509}}^1$

素因数の和:777

約数の個数: 32

約数和(自身を含む): 814302720

約数和(自身を除く): 152400647

約数列:

[1, 7, 23, 41, 161, 197, 287, 509, 943, 1379, 3563, 4531, 6601, 8077, 11707, 20869, 31717, 56539, 81949, 100273, 146083, 185771, 479987, 701911, 1300397, 2306279, 3359909, 4111193, 16143953, 28778351, 94557439, 661902073]

約数ペア:

[(1, 661902073), (7, 94557439), (23, 28778351), (41, 16143953), (161, 4111193), (197, 3359909), (287, 2306279), (509, 1300397), (943, 701911), (1379, 479987), (3563, 185771), (4531, 146083), (6601, 100273), (8077, 81949), (11707, 56539), (20869, 31717)]