18686430

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{9887}}^1$

素因数の和:9910

約数の個数: 64

約数和(自身を含む): 56954880

約数和(自身を除く): 38268450

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 9887, 19774, 29661, 49435, 59322, 69209, 88983, 98870, 138418, 148305, 177966, 207627, 266949, 296610, 346045, 415254, 444915, 533898, 622881, 692090, 889830, 1038135, 1245762, 1334745, 1868643, 2076270, 2669490, 3114405, 3737286, 6228810, 9343215, 18686430]

約数ペア:

[(1, 18686430), (2, 9343215), (3, 6228810), (5, 3737286), (6, 3114405), (7, 2669490), (9, 2076270), (10, 1868643), (14, 1334745), (15, 1245762), (18, 1038135), (21, 889830), (27, 692090), (30, 622881), (35, 533898), (42, 444915), (45, 415254), (54, 346045), (63, 296610), (70, 266949), (90, 207627), (105, 177966), (126, 148305), (135, 138418), (189, 98870), (210, 88983), (270, 69209), (315, 59322), (378, 49435), (630, 29661), (945, 19774), (1890, 9887)]