21479510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1301}}^1$

素因数の和:1448

約数の個数: 32

約数和(自身を含む): 41997312

約数和(自身を除く): 20517802

約数列:

[1, 2, 5, 10, 13, 26, 65, 127, 130, 254, 635, 1270, 1301, 1651, 2602, 3302, 6505, 8255, 13010, 16510, 16913, 33826, 84565, 165227, 169130, 330454, 826135, 1652270, 2147951, 4295902, 10739755, 21479510]

約数ペア:

[(1, 21479510), (2, 10739755), (5, 4295902), (10, 2147951), (13, 1652270), (26, 826135), (65, 330454), (127, 169130), (130, 165227), (254, 84565), (635, 33826), (1270, 16913), (1301, 16510), (1651, 13010), (2602, 8255), (3302, 6505)]