21547630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1997}}^1$

素因数の和:2100

約数の個数: 32

約数和(自身を含む): 42293664

約数和(自身を除く): 20746034

約数列:

[1, 2, 5, 10, 13, 26, 65, 83, 130, 166, 415, 830, 1079, 1997, 2158, 3994, 5395, 9985, 10790, 19970, 25961, 51922, 129805, 165751, 259610, 331502, 828755, 1657510, 2154763, 4309526, 10773815, 21547630]

約数ペア:

[(1, 21547630), (2, 10773815), (5, 4309526), (10, 2154763), (13, 1657510), (26, 828755), (65, 331502), (83, 259610), (130, 165751), (166, 129805), (415, 51922), (830, 25961), (1079, 19970), (1997, 10790), (2158, 9985), (3994, 5395)]