20442345

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1609}}^1$

素因数の和:1646

約数の個数: 48

約数和(自身を含む): 41112960

約数和(自身を除く): 20670615

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 121, 165, 231, 363, 385, 605, 847, 1155, 1609, 1815, 2541, 4235, 4827, 8045, 11263, 12705, 17699, 24135, 33789, 53097, 56315, 88495, 123893, 168945, 194689, 265485, 371679, 584067, 619465, 973445, 1362823, 1858395, 2920335, 4088469, 6814115, 20442345]

約数ペア:

[(1, 20442345), (3, 6814115), (5, 4088469), (7, 2920335), (11, 1858395), (15, 1362823), (21, 973445), (33, 619465), (35, 584067), (55, 371679), (77, 265485), (105, 194689), (121, 168945), (165, 123893), (231, 88495), (363, 56315), (385, 53097), (605, 33789), (847, 24135), (1155, 17699), (1609, 12705), (1815, 11263), (2541, 8045), (4235, 4827)]