20898984

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{283}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 55823040

約数和(自身を除く): 34924056

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 181, 204, 283, 362, 408, 543, 566, 724, 849, 1086, 1132, 1448, 1698, 2172, 2264, 3077, 3396, 4344, 4811, 6154, 6792, 9231, 9622, 12308, 14433, 18462, 19244, 24616, 28866, 36924, 38488, 51223, 57732, 73848, 102446, 115464, 153669, 204892, 307338, 409784, 614676, 870791, 1229352, 1741582, 2612373, 3483164, 5224746, 6966328, 10449492, 20898984]

約数ペア:

[(1, 20898984), (2, 10449492), (3, 6966328), (4, 5224746), (6, 3483164), (8, 2612373), (12, 1741582), (17, 1229352), (24, 870791), (34, 614676), (51, 409784), (68, 307338), (102, 204892), (136, 153669), (181, 115464), (204, 102446), (283, 73848), (362, 57732), (408, 51223), (543, 38488), (566, 36924), (724, 28866), (849, 24616), (1086, 19244), (1132, 18462), (1448, 14433), (1698, 12308), (2172, 9622), (2264, 9231), (3077, 6792), (3396, 6154), (4344, 4811)]