19720986

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 44323200

約数和(自身を除く): 24602214

約数列:

[1, 2, 3, 6, 17, 29, 34, 51, 58, 59, 87, 102, 113, 118, 174, 177, 226, 339, 354, 493, 678, 986, 1003, 1479, 1711, 1921, 2006, 2958, 3009, 3277, 3422, 3842, 5133, 5763, 6018, 6554, 6667, 9831, 10266, 11526, 13334, 19662, 20001, 29087, 40002, 55709, 58174, 87261, 111418, 113339, 167127, 174522, 193343, 226678, 334254, 340017, 386686, 580029, 680034, 1160058, 3286831, 6573662, 9860493, 19720986]

約数ペア:

[(1, 19720986), (2, 9860493), (3, 6573662), (6, 3286831), (17, 1160058), (29, 680034), (34, 580029), (51, 386686), (58, 340017), (59, 334254), (87, 226678), (102, 193343), (113, 174522), (118, 167127), (174, 113339), (177, 111418), (226, 87261), (339, 58174), (354, 55709), (493, 40002), (678, 29087), (986, 20001), (1003, 19662), (1479, 13334), (1711, 11526), (1921, 10266), (2006, 9831), (2958, 6667), (3009, 6554), (3277, 6018), (3422, 5763), (3842, 5133)]