21226530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1471}}^1$

素因数の和:1531

約数の個数: 64

約数和(自身を含む): 56383488

約数和(自身を除く): 35156958

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 37, 39, 65, 74, 78, 111, 130, 185, 195, 222, 370, 390, 481, 555, 962, 1110, 1443, 1471, 2405, 2886, 2942, 4413, 4810, 7215, 7355, 8826, 14430, 14710, 19123, 22065, 38246, 44130, 54427, 57369, 95615, 108854, 114738, 163281, 191230, 272135, 286845, 326562, 544270, 573690, 707551, 816405, 1415102, 1632810, 2122653, 3537755, 4245306, 7075510, 10613265, 21226530]

約数ペア:

[(1, 21226530), (2, 10613265), (3, 7075510), (5, 4245306), (6, 3537755), (10, 2122653), (13, 1632810), (15, 1415102), (26, 816405), (30, 707551), (37, 573690), (39, 544270), (65, 326562), (74, 286845), (78, 272135), (111, 191230), (130, 163281), (185, 114738), (195, 108854), (222, 95615), (370, 57369), (390, 54427), (481, 44130), (555, 38246), (962, 22065), (1110, 19123), (1443, 14710), (1471, 14430), (2405, 8826), (2886, 7355), (2942, 7215), (4413, 4810)]