18740018

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{563}}^1$

素因数の和:682

約数の個数: 32

約数和(自身を含む): 32892480

約数和(自身を除く): 14152462

約数列:

[1, 2, 11, 17, 22, 34, 89, 178, 187, 374, 563, 979, 1126, 1513, 1958, 3026, 6193, 9571, 12386, 16643, 19142, 33286, 50107, 100214, 105281, 210562, 551177, 851819, 1102354, 1703638, 9370009, 18740018]

約数ペア:

[(1, 18740018), (2, 9370009), (11, 1703638), (17, 1102354), (22, 851819), (34, 551177), (89, 210562), (178, 105281), (187, 100214), (374, 50107), (563, 33286), (979, 19142), (1126, 16643), (1513, 12386), (1958, 9571), (3026, 6193)]