2100187984

素因数分解:

$2^4\times {\mathrm{7001}}^1\times {\mathrm{18749}}^1$

素因数の和:25758

約数の個数: 20

約数和(自身を含む): 4069912500

約数和(自身を除く): 1969724516

約数列:

[1, 2, 4, 8, 16, 7001, 14002, 18749, 28004, 37498, 56008, 74996, 112016, 149992, 299984, 131261749, 262523498, 525046996, 1050093992, 2100187984]

約数ペア:

[(1, 2100187984), (2, 1050093992), (4, 525046996), (8, 262523498), (16, 131261749), (7001, 299984), (14002, 149992), (18749, 112016), (28004, 74996), (37498, 56008)]