21210588

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1153}}^1$

素因数の和:1243

約数の個数: 72

約数和(自身を含む): 62168288

約数和(自身を除く): 40957700

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 73, 84, 126, 146, 219, 252, 292, 438, 511, 657, 876, 1022, 1153, 1314, 1533, 2044, 2306, 2628, 3066, 3459, 4599, 4612, 6132, 6918, 8071, 9198, 10377, 13836, 16142, 18396, 20754, 24213, 32284, 41508, 48426, 72639, 84169, 96852, 145278, 168338, 252507, 290556, 336676, 505014, 589183, 757521, 1010028, 1178366, 1515042, 1767549, 2356732, 3030084, 3535098, 5302647, 7070196, 10605294, 21210588]

約数ペア:

[(1, 21210588), (2, 10605294), (3, 7070196), (4, 5302647), (6, 3535098), (7, 3030084), (9, 2356732), (12, 1767549), (14, 1515042), (18, 1178366), (21, 1010028), (28, 757521), (36, 589183), (42, 505014), (63, 336676), (73, 290556), (84, 252507), (126, 168338), (146, 145278), (219, 96852), (252, 84169), (292, 72639), (438, 48426), (511, 41508), (657, 32284), (876, 24213), (1022, 20754), (1153, 18396), (1314, 16142), (1533, 13836), (2044, 10377), (2306, 9198), (2628, 8071), (3066, 6918), (3459, 6132), (4599, 4612)]