21291363944

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{635639}}^1$

素因数の和:635777

約数の個数: 32

約数和(自身を含む): 41189472000

約数和(自身を除く): 19898108056

約数列:

[1, 2, 4, 8, 53, 79, 106, 158, 212, 316, 424, 632, 4187, 8374, 16748, 33496, 635639, 1271278, 2542556, 5085112, 33688867, 50215481, 67377734, 100430962, 134755468, 200861924, 269510936, 401723848, 2661420493, 5322840986, 10645681972, 21291363944]

約数ペア:

[(1, 21291363944), (2, 10645681972), (4, 5322840986), (8, 2661420493), (53, 401723848), (79, 269510936), (106, 200861924), (158, 134755468), (212, 100430962), (316, 67377734), (424, 50215481), (632, 33688867), (4187, 5085112), (8374, 2542556), (16748, 1271278), (33496, 635639)]