20872054

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{509}}^1$

素因数の和:648

約数の個数: 32

約数和(自身を含む): 37454400

約数和(自身を除く): 16582346

約数列:

[1, 2, 7, 14, 29, 58, 101, 202, 203, 406, 509, 707, 1018, 1414, 2929, 3563, 5858, 7126, 14761, 20503, 29522, 41006, 51409, 102818, 103327, 206654, 359863, 719726, 1490861, 2981722, 10436027, 20872054]

約数ペア:

[(1, 20872054), (2, 10436027), (7, 2981722), (14, 1490861), (29, 719726), (58, 359863), (101, 206654), (202, 103327), (203, 102818), (406, 51409), (509, 41006), (707, 29522), (1018, 20503), (1414, 14761), (2929, 7126), (3563, 5858)]