31720156

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{743}}^1\times {\mathrm{821}}^1$

素因数の和:1581

約数の個数: 24

約数和(自身を含む): 59933664

約数和(自身を除く): 28213508

約数列:

[1, 2, 4, 13, 26, 52, 743, 821, 1486, 1642, 2972, 3284, 9659, 10673, 19318, 21346, 38636, 42692, 610003, 1220006, 2440012, 7930039, 15860078, 31720156]

約数ペア:

[(1, 31720156), (2, 15860078), (4, 7930039), (13, 2440012), (26, 1220006), (52, 610003), (743, 42692), (821, 38636), (1486, 21346), (1642, 19318), (2972, 10673), (3284, 9659)]