21002355770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{190930507}}^1$

素因数の和:190930525

約数の個数: 16

約数和(自身を含む): 41240989728

約数和(自身を除く): 20238633958

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 190930507, 381861014, 954652535, 1909305070, 2100235577, 4200471154, 10501177885, 21002355770]

約数ペア:

[(1, 21002355770), (2, 10501177885), (5, 4200471154), (10, 2100235577), (11, 1909305070), (22, 954652535), (55, 381861014), (110, 190930507)]