20309706

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:471

約数の個数: 48

約数和(自身を含む): 45700200

約数和(自身を除く): 25390494

約数列:

[1, 2, 3, 6, 9, 18, 53, 61, 106, 122, 159, 183, 318, 349, 366, 477, 549, 698, 954, 1047, 1098, 2094, 3141, 3233, 6282, 6466, 9699, 18497, 19398, 21289, 29097, 36994, 42578, 55491, 58194, 63867, 110982, 127734, 166473, 191601, 332946, 383202, 1128317, 2256634, 3384951, 6769902, 10154853, 20309706]

約数ペア:

[(1, 20309706), (2, 10154853), (3, 6769902), (6, 3384951), (9, 2256634), (18, 1128317), (53, 383202), (61, 332946), (106, 191601), (122, 166473), (159, 127734), (183, 110982), (318, 63867), (349, 58194), (366, 55491), (477, 42578), (549, 36994), (698, 29097), (954, 21289), (1047, 19398), (1098, 18497), (2094, 9699), (3141, 6466), (3233, 6282)]