19975449

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 29962240

約数和(自身を除く): 9986791

約数列:

[1, 3, 13, 37, 39, 109, 111, 127, 327, 381, 481, 1417, 1443, 1651, 4033, 4251, 4699, 4953, 12099, 13843, 14097, 41529, 52429, 61087, 157287, 179959, 183261, 512191, 539877, 1536573, 6658483, 19975449]

約数ペア:

[(1, 19975449), (3, 6658483), (13, 1536573), (37, 539877), (39, 512191), (109, 183261), (111, 179959), (127, 157287), (327, 61087), (381, 52429), (481, 41529), (1417, 14097), (1443, 13843), (1651, 12099), (4033, 4953), (4251, 4699)]