21048690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1741}}^1$

素因数の和:1795

約数の個数: 64

約数和(自身を含む): 56189952

約数和(自身を除く): 35141262

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 31, 39, 62, 65, 78, 93, 130, 155, 186, 195, 310, 390, 403, 465, 806, 930, 1209, 1741, 2015, 2418, 3482, 4030, 5223, 6045, 8705, 10446, 12090, 17410, 22633, 26115, 45266, 52230, 53971, 67899, 107942, 113165, 135798, 161913, 226330, 269855, 323826, 339495, 539710, 678990, 701623, 809565, 1403246, 1619130, 2104869, 3508115, 4209738, 7016230, 10524345, 21048690]

約数ペア:

[(1, 21048690), (2, 10524345), (3, 7016230), (5, 4209738), (6, 3508115), (10, 2104869), (13, 1619130), (15, 1403246), (26, 809565), (30, 701623), (31, 678990), (39, 539710), (62, 339495), (65, 323826), (78, 269855), (93, 226330), (130, 161913), (155, 135798), (186, 113165), (195, 107942), (310, 67899), (390, 53971), (403, 52230), (465, 45266), (806, 26115), (930, 22633), (1209, 17410), (1741, 12090), (2015, 10446), (2418, 8705), (3482, 6045), (4030, 5223)]