13085205

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{937}}^1$

素因数の和:978

約数の個数: 48

約数和(自身を含む): 25663680

約数和(自身を除く): 12578475

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 95, 105, 133, 147, 245, 285, 399, 665, 735, 931, 937, 1995, 2793, 2811, 4655, 4685, 6559, 13965, 14055, 17803, 19677, 32795, 45913, 53409, 89015, 98385, 124621, 137739, 229565, 267045, 373863, 623105, 688695, 872347, 1869315, 2617041, 4361735, 13085205]

約数ペア:

[(1, 13085205), (3, 4361735), (5, 2617041), (7, 1869315), (15, 872347), (19, 688695), (21, 623105), (35, 373863), (49, 267045), (57, 229565), (95, 137739), (105, 124621), (133, 98385), (147, 89015), (245, 53409), (285, 45913), (399, 32795), (665, 19677), (735, 17803), (931, 14055), (937, 13965), (1995, 6559), (2793, 4685), (2811, 4655)]