21344328

素因数分解:

$2^3\times 3^2\times {\mathrm{521}}^1\times {\mathrm{569}}^1$

素因数の和:1102

約数の個数: 48

約数和(自身を含む): 58020300

約数和(自身を除く): 36675972

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 521, 569, 1042, 1138, 1563, 1707, 2084, 2276, 3126, 3414, 4168, 4552, 4689, 5121, 6252, 6828, 9378, 10242, 12504, 13656, 18756, 20484, 37512, 40968, 296449, 592898, 889347, 1185796, 1778694, 2371592, 2668041, 3557388, 5336082, 7114776, 10672164, 21344328]

約数ペア:

[(1, 21344328), (2, 10672164), (3, 7114776), (4, 5336082), (6, 3557388), (8, 2668041), (9, 2371592), (12, 1778694), (18, 1185796), (24, 889347), (36, 592898), (72, 296449), (521, 40968), (569, 37512), (1042, 20484), (1138, 18756), (1563, 13656), (1707, 12504), (2084, 10242), (2276, 9378), (3126, 6828), (3414, 6252), (4168, 5121), (4552, 4689)]