21890648

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{210487}}^1$

素因数の和:210506

約数の個数: 16

約数和(自身を含む): 44202480

約数和(自身を除く): 22311832

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 210487, 420974, 841948, 1683896, 2736331, 5472662, 10945324, 21890648]

約数ペア:

[(1, 21890648), (2, 10945324), (4, 5472662), (8, 2736331), (13, 1683896), (26, 841948), (52, 420974), (104, 210487)]