19973912

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{20981}}^1$

素因数の和:21011

約数の個数: 32

約数和(自身を含む): 45321120

約数和(自身を除く): 25347208

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 476, 952, 20981, 41962, 83924, 146867, 167848, 293734, 356677, 587468, 713354, 1174936, 1426708, 2496739, 2853416, 4993478, 9986956, 19973912]

約数ペア:

[(1, 19973912), (2, 9986956), (4, 4993478), (7, 2853416), (8, 2496739), (14, 1426708), (17, 1174936), (28, 713354), (34, 587468), (56, 356677), (68, 293734), (119, 167848), (136, 146867), (238, 83924), (476, 41962), (952, 20981)]