21159992

素因数分解:

$2^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{4783}}^1$

素因数の和:4875

約数の個数: 32

約数和(自身を含む): 45926400

約数和(自身を除く): 24766408

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 79, 158, 316, 553, 632, 1106, 2212, 4424, 4783, 9566, 19132, 33481, 38264, 66962, 133924, 267848, 377857, 755714, 1511428, 2644999, 3022856, 5289998, 10579996, 21159992]

約数ペア:

[(1, 21159992), (2, 10579996), (4, 5289998), (7, 3022856), (8, 2644999), (14, 1511428), (28, 755714), (56, 377857), (79, 267848), (158, 133924), (316, 66962), (553, 38264), (632, 33481), (1106, 19132), (2212, 9566), (4424, 4783)]