21981034

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:330

約数の個数: 32

約数和(自身を含む): 36418896

約数和(自身を除く): 14437862

約数列:

[1, 2, 17, 34, 37, 74, 101, 173, 202, 346, 629, 1258, 1717, 2941, 3434, 3737, 5882, 6401, 7474, 12802, 17473, 34946, 63529, 108817, 127058, 217634, 297041, 594082, 646501, 1293002, 10990517, 21981034]

約数ペア:

[(1, 21981034), (2, 10990517), (17, 1293002), (34, 646501), (37, 594082), (74, 297041), (101, 217634), (173, 127058), (202, 108817), (346, 63529), (629, 34946), (1258, 17473), (1717, 12802), (2941, 7474), (3434, 6401), (3737, 5882)]