19317915

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 35212320

約数和(自身を除く): 15894405

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 113, 131, 145, 261, 339, 393, 435, 565, 655, 1017, 1179, 1305, 1695, 1965, 3277, 3799, 5085, 5895, 9831, 11397, 14803, 16385, 18995, 29493, 34191, 44409, 49155, 56985, 74015, 133227, 147465, 170955, 222045, 429287, 666135, 1287861, 2146435, 3863583, 6439305, 19317915]

約数ペア:

[(1, 19317915), (3, 6439305), (5, 3863583), (9, 2146435), (15, 1287861), (29, 666135), (45, 429287), (87, 222045), (113, 170955), (131, 147465), (145, 133227), (261, 74015), (339, 56985), (393, 49155), (435, 44409), (565, 34191), (655, 29493), (1017, 18995), (1179, 16385), (1305, 14803), (1695, 11397), (1965, 9831), (3277, 5895), (3799, 5085)]