20861810

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1861}}^1$

素因数の和:1946

約数の個数: 32

約数和(自身を含む): 40219200

約数和(自身を除く): 19357390

約数列:

[1, 2, 5, 10, 19, 38, 59, 95, 118, 190, 295, 590, 1121, 1861, 2242, 3722, 5605, 9305, 11210, 18610, 35359, 70718, 109799, 176795, 219598, 353590, 548995, 1097990, 2086181, 4172362, 10430905, 20861810]

約数ペア:

[(1, 20861810), (2, 10430905), (5, 4172362), (10, 2086181), (19, 1097990), (38, 548995), (59, 353590), (95, 219598), (118, 176795), (190, 109799), (295, 70718), (590, 35359), (1121, 18610), (1861, 11210), (2242, 9305), (3722, 5605)]