20989356

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3319}}^1$

素因数の和:3374

約数の個数: 48

約数和(自身を含む): 53544960

約数和(自身を除く): 32555604

約数列:

[1, 2, 3, 4, 6, 12, 17, 31, 34, 51, 62, 68, 93, 102, 124, 186, 204, 372, 527, 1054, 1581, 2108, 3162, 3319, 6324, 6638, 9957, 13276, 19914, 39828, 56423, 102889, 112846, 169269, 205778, 225692, 308667, 338538, 411556, 617334, 677076, 1234668, 1749113, 3498226, 5247339, 6996452, 10494678, 20989356]

約数ペア:

[(1, 20989356), (2, 10494678), (3, 6996452), (4, 5247339), (6, 3498226), (12, 1749113), (17, 1234668), (31, 677076), (34, 617334), (51, 411556), (62, 338538), (68, 308667), (93, 225692), (102, 205778), (124, 169269), (186, 112846), (204, 102889), (372, 56423), (527, 39828), (1054, 19914), (1581, 13276), (2108, 9957), (3162, 6638), (3319, 6324)]