21099130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1489}}^1$

素因数の和:1618

約数の個数: 32

約数和(自身を含む): 41302800

約数和(自身を除く): 20203670

約数列:

[1, 2, 5, 10, 13, 26, 65, 109, 130, 218, 545, 1090, 1417, 1489, 2834, 2978, 7085, 7445, 14170, 14890, 19357, 38714, 96785, 162301, 193570, 324602, 811505, 1623010, 2109913, 4219826, 10549565, 21099130]

約数ペア:

[(1, 21099130), (2, 10549565), (5, 4219826), (10, 2109913), (13, 1623010), (26, 811505), (65, 324602), (109, 193570), (130, 162301), (218, 96785), (545, 38714), (1090, 19357), (1417, 14890), (1489, 14170), (2834, 7445), (2978, 7085)]