21008650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{32321}}^1$

素因数の和:32346

約数の個数: 24

約数和(自身を含む): 42083244

約数和(自身を除く): 21074594

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 32321, 64642, 161605, 323210, 420173, 808025, 840346, 1616050, 2100865, 4201730, 10504325, 21008650]

約数ペア:

[(1, 21008650), (2, 10504325), (5, 4201730), (10, 2100865), (13, 1616050), (25, 840346), (26, 808025), (50, 420173), (65, 323210), (130, 161605), (325, 64642), (650, 32321)]