21008896

素因数分解:

$2^9\times {\mathrm{37}}^1\times {\mathrm{1109}}^1$

素因数の和:1164

約数の個数: 40

約数和(自身を含む): 43150140

約数和(自身を除く): 22141244

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 74, 128, 148, 256, 296, 512, 592, 1109, 1184, 2218, 2368, 4436, 4736, 8872, 9472, 17744, 18944, 35488, 41033, 70976, 82066, 141952, 164132, 283904, 328264, 567808, 656528, 1313056, 2626112, 5252224, 10504448, 21008896]

約数ペア:

[(1, 21008896), (2, 10504448), (4, 5252224), (8, 2626112), (16, 1313056), (32, 656528), (37, 567808), (64, 328264), (74, 283904), (128, 164132), (148, 141952), (256, 82066), (296, 70976), (512, 41033), (592, 35488), (1109, 18944), (1184, 17744), (2218, 9472), (2368, 8872), (4436, 4736)]