20886928

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{541}}^1$

素因数の和:695

約数の個数: 40

約数和(自身を含む): 43013120

約数和(自身を除く): 22126192

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 127, 152, 254, 304, 508, 541, 1016, 1082, 2032, 2164, 2413, 4328, 4826, 8656, 9652, 10279, 19304, 20558, 38608, 41116, 68707, 82232, 137414, 164464, 274828, 549656, 1099312, 1305433, 2610866, 5221732, 10443464, 20886928]

約数ペア:

[(1, 20886928), (2, 10443464), (4, 5221732), (8, 2610866), (16, 1305433), (19, 1099312), (38, 549656), (76, 274828), (127, 164464), (152, 137414), (254, 82232), (304, 68707), (508, 41116), (541, 38608), (1016, 20558), (1082, 19304), (2032, 10279), (2164, 9652), (2413, 8656), (4328, 4826)]