21998074

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1289}}^1$

素因数の和:1374

約数の個数: 32

約数和(自身を含む): 40124160

約数和(自身を除く): 18126086

約数列:

[1, 2, 7, 14, 23, 46, 53, 106, 161, 322, 371, 742, 1219, 1289, 2438, 2578, 8533, 9023, 17066, 18046, 29647, 59294, 68317, 136634, 207529, 415058, 478219, 956438, 1571291, 3142582, 10999037, 21998074]

約数ペア:

[(1, 21998074), (2, 10999037), (7, 3142582), (14, 1571291), (23, 956438), (46, 478219), (53, 415058), (106, 207529), (161, 136634), (322, 68317), (371, 59294), (742, 29647), (1219, 18046), (1289, 17066), (2438, 9023), (2578, 8533)]