21401984

素因数分解:

$2^7\times {\mathrm{37}}^1\times {\mathrm{4519}}^1$

素因数の和:4570

約数の個数: 32

約数和(自身を含む): 43798800

約数和(自身を除く): 22396816

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 74, 128, 148, 296, 592, 1184, 2368, 4519, 4736, 9038, 18076, 36152, 72304, 144608, 167203, 289216, 334406, 578432, 668812, 1337624, 2675248, 5350496, 10700992, 21401984]

約数ペア:

[(1, 21401984), (2, 10700992), (4, 5350496), (8, 2675248), (16, 1337624), (32, 668812), (37, 578432), (64, 334406), (74, 289216), (128, 167203), (148, 144608), (296, 72304), (592, 36152), (1184, 18076), (2368, 9038), (4519, 4736)]