21118930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{17747}}^1$

素因数の和:17778

約数の個数: 32

約数和(自身を含む): 46002816

約数和(自身を除く): 24883886

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 170, 238, 595, 1190, 17747, 35494, 88735, 124229, 177470, 248458, 301699, 603398, 621145, 1242290, 1508495, 2111893, 3016990, 4223786, 10559465, 21118930]

約数ペア:

[(1, 21118930), (2, 10559465), (5, 4223786), (7, 3016990), (10, 2111893), (14, 1508495), (17, 1242290), (34, 621145), (35, 603398), (70, 301699), (85, 248458), (119, 177470), (170, 124229), (238, 88735), (595, 35494), (1190, 17747)]