21991942

素因数分解:

$2^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:364

約数の個数: 32

約数和(自身を含む): 38697984

約数和(自身を除く): 16706042

約数列:

[1, 2, 7, 14, 101, 103, 151, 202, 206, 302, 707, 721, 1057, 1414, 1442, 2114, 10403, 15251, 15553, 20806, 30502, 31106, 72821, 106757, 108871, 145642, 213514, 217742, 1570853, 3141706, 10995971, 21991942]

約数ペア:

[(1, 21991942), (2, 10995971), (7, 3141706), (14, 1570853), (101, 217742), (103, 213514), (151, 145642), (202, 108871), (206, 106757), (302, 72821), (707, 31106), (721, 30502), (1057, 20806), (1414, 15553), (1442, 15251), (2114, 10403)]