21207348

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^2\times {\mathrm{613}}^1$

素因数の和:685

約数の個数: 54

約数和(自身を含む): 55482882

約数和(自身を除く): 34275534

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 279, 372, 558, 613, 961, 1116, 1226, 1839, 1922, 2452, 2883, 3678, 3844, 5517, 5766, 7356, 8649, 11034, 11532, 17298, 19003, 22068, 34596, 38006, 57009, 76012, 114018, 171027, 228036, 342054, 589093, 684108, 1178186, 1767279, 2356372, 3534558, 5301837, 7069116, 10603674, 21207348]

約数ペア:

[(1, 21207348), (2, 10603674), (3, 7069116), (4, 5301837), (6, 3534558), (9, 2356372), (12, 1767279), (18, 1178186), (31, 684108), (36, 589093), (62, 342054), (93, 228036), (124, 171027), (186, 114018), (279, 76012), (372, 57009), (558, 38006), (613, 34596), (961, 22068), (1116, 19003), (1226, 17298), (1839, 11532), (1922, 11034), (2452, 8649), (2883, 7356), (3678, 5766), (3844, 5517)]