21308281618

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{317}}^1\times {\mathrm{821}}^1$

素因数の和:1267

約数の個数: 64

約数和(自身を含む): 35834254848

約数和(自身を除く): 14525973230

約数列:

[1, 2, 13, 26, 47, 67, 94, 134, 317, 611, 634, 821, 871, 1222, 1642, 1742, 3149, 4121, 6298, 8242, 10673, 14899, 21239, 21346, 29798, 38587, 40937, 42478, 55007, 77174, 81874, 110014, 193687, 260257, 276107, 387374, 501631, 520514, 552214, 715091, 998233, 1003262, 1430182, 1996466, 2585329, 3383341, 5170658, 6766682, 12232079, 12977029, 17437219, 24464158, 25954058, 33609277, 34874438, 67218554, 159017027, 226683847, 318034054, 453367694, 819549293, 1639098586, 10654140809, 21308281618]

約数ペア:

[(1, 21308281618), (2, 10654140809), (13, 1639098586), (26, 819549293), (47, 453367694), (67, 318034054), (94, 226683847), (134, 159017027), (317, 67218554), (611, 34874438), (634, 33609277), (821, 25954058), (871, 24464158), (1222, 17437219), (1642, 12977029), (1742, 12232079), (3149, 6766682), (4121, 5170658), (6298, 3383341), (8242, 2585329), (10673, 1996466), (14899, 1430182), (21239, 1003262), (21346, 998233), (29798, 715091), (38587, 552214), (40937, 520514), (42478, 501631), (55007, 387374), (77174, 276107), (81874, 260257), (110014, 193687)]