19993904

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{10501}}^1$

素因数の和:10533

約数の個数: 40

約数和(自身を含む): 46880928

約数和(自身を除く): 26887024

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 10501, 21002, 42004, 73507, 84008, 147014, 168016, 178517, 294028, 357034, 588056, 714068, 1176112, 1249619, 1428136, 2499238, 2856272, 4998476, 9996952, 19993904]

約数ペア:

[(1, 19993904), (2, 9996952), (4, 4998476), (7, 2856272), (8, 2499238), (14, 1428136), (16, 1249619), (17, 1176112), (28, 714068), (34, 588056), (56, 357034), (68, 294028), (112, 178517), (119, 168016), (136, 147014), (238, 84008), (272, 73507), (476, 42004), (952, 21002), (1904, 10501)]