221570648

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{15551}}^1$

素因数の和:15707

約数の個数: 32

約数和(自身を含む): 450696960

約数和(自身を除く): 229126312

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 137, 274, 548, 1096, 1781, 3562, 7124, 14248, 15551, 31102, 62204, 124408, 202163, 404326, 808652, 1617304, 2130487, 4260974, 8521948, 17043896, 27696331, 55392662, 110785324, 221570648]

約数ペア:

[(1, 221570648), (2, 110785324), (4, 55392662), (8, 27696331), (13, 17043896), (26, 8521948), (52, 4260974), (104, 2130487), (137, 1617304), (274, 808652), (548, 404326), (1096, 202163), (1781, 124408), (3562, 62204), (7124, 31102), (14248, 15551)]