19558768

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{839}}^1$

素因数の和:925

約数の個数: 40

約数和(自身を含む): 39997440

約数和(自身を除く): 20438672

約数列:

[1, 2, 4, 8, 16, 31, 47, 62, 94, 124, 188, 248, 376, 496, 752, 839, 1457, 1678, 2914, 3356, 5828, 6712, 11656, 13424, 23312, 26009, 39433, 52018, 78866, 104036, 157732, 208072, 315464, 416144, 630928, 1222423, 2444846, 4889692, 9779384, 19558768]

約数ペア:

[(1, 19558768), (2, 9779384), (4, 4889692), (8, 2444846), (16, 1222423), (31, 630928), (47, 416144), (62, 315464), (94, 208072), (124, 157732), (188, 104036), (248, 78866), (376, 52018), (496, 39433), (752, 26009), (839, 23312), (1457, 13424), (1678, 11656), (2914, 6712), (3356, 5828)]