21097424

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{16691}}^1$

素因数の和:16778

約数の個数: 20

約数和(自身を含む): 41396160

約数和(自身を除く): 20298736

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 16691, 33382, 66764, 133528, 267056, 1318589, 2637178, 5274356, 10548712, 21097424]

約数ペア:

[(1, 21097424), (2, 10548712), (4, 5274356), (8, 2637178), (16, 1318589), (79, 267056), (158, 133528), (316, 66764), (632, 33382), (1264, 16691)]