21288670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1973}}^1$

素因数の和:2076

約数の個数: 32

約数和(自身を含む): 41785632

約数和(自身を除く): 20496962

約数列:

[1, 2, 5, 10, 13, 26, 65, 83, 130, 166, 415, 830, 1079, 1973, 2158, 3946, 5395, 9865, 10790, 19730, 25649, 51298, 128245, 163759, 256490, 327518, 818795, 1637590, 2128867, 4257734, 10644335, 21288670]

約数ペア:

[(1, 21288670), (2, 10644335), (5, 4257734), (10, 2128867), (13, 1637590), (26, 818795), (65, 327518), (83, 256490), (130, 163759), (166, 128245), (415, 51298), (830, 25649), (1079, 19730), (1973, 10790), (2158, 9865), (3946, 5395)]