21862490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3911}}^1$

素因数の和:3974

約数の個数: 32

約数和(自身を含む): 43376256

約数和(自身を除く): 21513766

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 1118, 2795, 3911, 5590, 7822, 19555, 39110, 50843, 101686, 168173, 254215, 336346, 508430, 840865, 1681730, 2186249, 4372498, 10931245, 21862490]

約数ペア:

[(1, 21862490), (2, 10931245), (5, 4372498), (10, 2186249), (13, 1681730), (26, 840865), (43, 508430), (65, 336346), (86, 254215), (130, 168173), (215, 101686), (430, 50843), (559, 39110), (1118, 19555), (2795, 7822), (3911, 5590)]