18873225

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{521}}^1$

素因数の和:567

約数の個数: 72

約数和(自身を含む): 40390272

約数和(自身を除く): 21517047

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 25, 35, 45, 63, 69, 75, 105, 115, 161, 175, 207, 225, 315, 345, 483, 521, 525, 575, 805, 1035, 1449, 1563, 1575, 1725, 2415, 2605, 3647, 4025, 4689, 5175, 7245, 7815, 10941, 11983, 12075, 13025, 18235, 23445, 32823, 35949, 36225, 39075, 54705, 59915, 83881, 91175, 107847, 117225, 164115, 179745, 251643, 273525, 299575, 419405, 539235, 754929, 820575, 898725, 1258215, 2097025, 2696175, 3774645, 6291075, 18873225]

約数ペア:

[(1, 18873225), (3, 6291075), (5, 3774645), (7, 2696175), (9, 2097025), (15, 1258215), (21, 898725), (23, 820575), (25, 754929), (35, 539235), (45, 419405), (63, 299575), (69, 273525), (75, 251643), (105, 179745), (115, 164115), (161, 117225), (175, 107847), (207, 91175), (225, 83881), (315, 59915), (345, 54705), (483, 39075), (521, 36225), (525, 35949), (575, 32823), (805, 23445), (1035, 18235), (1449, 13025), (1563, 12075), (1575, 11983), (1725, 10941), (2415, 7815), (2605, 7245), (3647, 5175), (4025, 4689)]