21059444

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{617}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 44851968

約数和(自身を除く): 23792524

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 53, 92, 106, 161, 212, 322, 371, 617, 644, 742, 1219, 1234, 1484, 2438, 2468, 4319, 4876, 8533, 8638, 14191, 17066, 17276, 28382, 32701, 34132, 56764, 65402, 99337, 130804, 198674, 228907, 397348, 457814, 752123, 915628, 1504246, 3008492, 5264861, 10529722, 21059444]

約数ペア:

[(1, 21059444), (2, 10529722), (4, 5264861), (7, 3008492), (14, 1504246), (23, 915628), (28, 752123), (46, 457814), (53, 397348), (92, 228907), (106, 198674), (161, 130804), (212, 99337), (322, 65402), (371, 56764), (617, 34132), (644, 32701), (742, 28382), (1219, 17276), (1234, 17066), (1484, 14191), (2438, 8638), (2468, 8533), (4319, 4876)]