20264517

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 36516480

約数和(自身を除く): 16251963

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 109, 117, 227, 273, 327, 681, 763, 819, 981, 1417, 1589, 2043, 2289, 2951, 4251, 4767, 6867, 8853, 9919, 12753, 14301, 20657, 24743, 26559, 29757, 61971, 74229, 89271, 173201, 185913, 222687, 321659, 519603, 964977, 1558809, 2251613, 2894931, 6754839, 20264517]

約数ペア:

[(1, 20264517), (3, 6754839), (7, 2894931), (9, 2251613), (13, 1558809), (21, 964977), (39, 519603), (63, 321659), (91, 222687), (109, 185913), (117, 173201), (227, 89271), (273, 74229), (327, 61971), (681, 29757), (763, 26559), (819, 24743), (981, 20657), (1417, 14301), (1589, 12753), (2043, 9919), (2289, 8853), (2951, 6867), (4251, 4767)]