21008034

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:160

約数の個数: 72

約数和(自身を含む): 49747932

約数和(自身を除く): 28739898

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 53, 57, 61, 106, 114, 122, 159, 171, 183, 318, 342, 361, 366, 477, 549, 722, 954, 1007, 1083, 1098, 1159, 2014, 2166, 2318, 3021, 3233, 3249, 3477, 6042, 6466, 6498, 6954, 9063, 9699, 10431, 18126, 19133, 19398, 20862, 22021, 29097, 38266, 44042, 57399, 58194, 61427, 66063, 114798, 122854, 132126, 172197, 184281, 198189, 344394, 368562, 396378, 552843, 1105686, 1167113, 2334226, 3501339, 7002678, 10504017, 21008034]

約数ペア:

[(1, 21008034), (2, 10504017), (3, 7002678), (6, 3501339), (9, 2334226), (18, 1167113), (19, 1105686), (38, 552843), (53, 396378), (57, 368562), (61, 344394), (106, 198189), (114, 184281), (122, 172197), (159, 132126), (171, 122854), (183, 114798), (318, 66063), (342, 61427), (361, 58194), (366, 57399), (477, 44042), (549, 38266), (722, 29097), (954, 22021), (1007, 20862), (1083, 19398), (1098, 19133), (1159, 18126), (2014, 10431), (2166, 9699), (2318, 9063), (3021, 6954), (3233, 6498), (3249, 6466), (3477, 6042)]