20616015

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{4007}}^1$

素因数の和:4036

約数の個数: 32

約数和(自身を含む): 38476800

約数和(自身を除く): 17860785

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 4007, 5145, 12021, 20035, 28049, 60105, 84147, 140245, 196343, 420735, 589029, 981715, 1374401, 2945145, 4123203, 6872005, 20616015]

約数ペア:

[(1, 20616015), (3, 6872005), (5, 4123203), (7, 2945145), (15, 1374401), (21, 981715), (35, 589029), (49, 420735), (105, 196343), (147, 140245), (245, 84147), (343, 60105), (735, 28049), (1029, 20035), (1715, 12021), (4007, 5145)]