21507018

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2677}}^1$

素因数の和:2798

約数の個数: 32

約数和(自身を含む): 46790016

約数和(自身を除く): 25282998

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 103, 206, 309, 618, 1339, 2677, 2678, 4017, 5354, 8031, 8034, 16062, 34801, 69602, 104403, 208806, 275731, 551462, 827193, 1654386, 3584503, 7169006, 10753509, 21507018]

約数ペア:

[(1, 21507018), (2, 10753509), (3, 7169006), (6, 3584503), (13, 1654386), (26, 827193), (39, 551462), (78, 275731), (103, 208806), (206, 104403), (309, 69602), (618, 34801), (1339, 16062), (2677, 8034), (2678, 8031), (4017, 5354)]