21369292

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{3517}}^1$

素因数の和:3566

約数の個数: 36

約数和(自身を含む): 44917824

約数和(自身を除く): 23548532

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 217, 434, 868, 1519, 3038, 3517, 6076, 7034, 14068, 24619, 49238, 98476, 109027, 172333, 218054, 344666, 436108, 689332, 763189, 1526378, 3052756, 5342323, 10684646, 21369292]

約数ペア:

[(1, 21369292), (2, 10684646), (4, 5342323), (7, 3052756), (14, 1526378), (28, 763189), (31, 689332), (49, 436108), (62, 344666), (98, 218054), (124, 172333), (196, 109027), (217, 98476), (434, 49238), (868, 24619), (1519, 14068), (3038, 7034), (3517, 6076)]