19442871

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{439}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 34777600

約数和(自身を除く): 15334729

約数列:

[1, 3, 7, 9, 19, 21, 37, 57, 63, 111, 133, 171, 259, 333, 399, 439, 703, 777, 1197, 1317, 2109, 2331, 3073, 3951, 4921, 6327, 8341, 9219, 14763, 16243, 25023, 27657, 44289, 48729, 58387, 75069, 113701, 146187, 175161, 308617, 341103, 525483, 925851, 1023309, 2160319, 2777553, 6480957, 19442871]

約数ペア:

[(1, 19442871), (3, 6480957), (7, 2777553), (9, 2160319), (19, 1023309), (21, 925851), (37, 525483), (57, 341103), (63, 308617), (111, 175161), (133, 146187), (171, 113701), (259, 75069), (333, 58387), (399, 48729), (439, 44289), (703, 27657), (777, 25023), (1197, 16243), (1317, 14763), (2109, 9219), (2331, 8341), (3073, 6327), (3951, 4921)]