21619696

素因数分解:

$2^4\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1409}}^1$

素因数の和:1561

約数の個数: 40

約数和(自身を含む): 48255840

約数和(自身を除く): 26636144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 137, 274, 548, 959, 1096, 1409, 1918, 2192, 2818, 3836, 5636, 7672, 9863, 11272, 15344, 19726, 22544, 39452, 78904, 157808, 193033, 386066, 772132, 1351231, 1544264, 2702462, 3088528, 5404924, 10809848, 21619696]

約数ペア:

[(1, 21619696), (2, 10809848), (4, 5404924), (7, 3088528), (8, 2702462), (14, 1544264), (16, 1351231), (28, 772132), (56, 386066), (112, 193033), (137, 157808), (274, 78904), (548, 39452), (959, 22544), (1096, 19726), (1409, 15344), (1918, 11272), (2192, 9863), (2818, 7672), (3836, 5636)]