20213973

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{877}}^1$

素因数の和:1093

約数の個数: 24

約数和(自身を含む): 31639608

約数和(自身を除く): 11425635

約数列:

[1, 3, 9, 13, 39, 117, 197, 591, 877, 1773, 2561, 2631, 7683, 7893, 11401, 23049, 34203, 102609, 172769, 518307, 1554921, 2245997, 6737991, 20213973]

約数ペア:

[(1, 20213973), (3, 6737991), (9, 2245997), (13, 1554921), (39, 518307), (117, 172769), (197, 102609), (591, 34203), (877, 23049), (1773, 11401), (2561, 7893), (2631, 7683)]