20382915

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{601}}^1$

素因数の和:652

約数の個数: 64

約数和(自身を含む): 41610240

約数和(自身を除く): 21227325

約数列:

[1, 3, 5, 7, 15, 17, 19, 21, 35, 51, 57, 85, 95, 105, 119, 133, 255, 285, 323, 357, 399, 595, 601, 665, 969, 1615, 1785, 1803, 1995, 2261, 3005, 4207, 4845, 6783, 9015, 10217, 11305, 11419, 12621, 21035, 30651, 33915, 34257, 51085, 57095, 63105, 71519, 79933, 153255, 171285, 194123, 214557, 239799, 357595, 399665, 582369, 970615, 1072785, 1198995, 1358861, 2911845, 4076583, 6794305, 20382915]

約数ペア:

[(1, 20382915), (3, 6794305), (5, 4076583), (7, 2911845), (15, 1358861), (17, 1198995), (19, 1072785), (21, 970615), (35, 582369), (51, 399665), (57, 357595), (85, 239799), (95, 214557), (105, 194123), (119, 171285), (133, 153255), (255, 79933), (285, 71519), (323, 63105), (357, 57095), (399, 51085), (595, 34257), (601, 33915), (665, 30651), (969, 21035), (1615, 12621), (1785, 11419), (1803, 11305), (1995, 10217), (2261, 9015), (3005, 6783), (4207, 4845)]