21398454

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{15439}}^1$

素因数の和:15465

約数の個数: 48

約数和(自身を含む): 57807360

約数和(自身を除く): 36408906

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 462, 693, 1386, 15439, 30878, 46317, 92634, 108073, 138951, 169829, 216146, 277902, 324219, 339658, 509487, 648438, 972657, 1018974, 1188803, 1528461, 1945314, 2377606, 3056922, 3566409, 7132818, 10699227, 21398454]

約数ペア:

[(1, 21398454), (2, 10699227), (3, 7132818), (6, 3566409), (7, 3056922), (9, 2377606), (11, 1945314), (14, 1528461), (18, 1188803), (21, 1018974), (22, 972657), (33, 648438), (42, 509487), (63, 339658), (66, 324219), (77, 277902), (99, 216146), (126, 169829), (154, 138951), (198, 108073), (231, 92634), (462, 46317), (693, 30878), (1386, 15439)]