21485670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{13513}}^1$

素因数の和:13576

約数の個数: 32

約数和(自身を含む): 52542432

約数和(自身を除く): 31056762

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 53, 106, 159, 265, 318, 530, 795, 1590, 13513, 27026, 40539, 67565, 81078, 135130, 202695, 405390, 716189, 1432378, 2148567, 3580945, 4297134, 7161890, 10742835, 21485670]

約数ペア:

[(1, 21485670), (2, 10742835), (3, 7161890), (5, 4297134), (6, 3580945), (10, 2148567), (15, 1432378), (30, 716189), (53, 405390), (106, 202695), (159, 135130), (265, 81078), (318, 67565), (530, 40539), (795, 27026), (1590, 13513)]