19850145

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{239}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 37428480

約数和(自身を除く): 17578335

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 113, 147, 239, 245, 339, 565, 717, 735, 791, 1195, 1673, 1695, 2373, 3585, 3955, 5019, 5537, 8365, 11711, 11865, 16611, 25095, 27007, 27685, 35133, 58555, 81021, 83055, 135035, 175665, 189049, 405105, 567147, 945245, 1323343, 2835735, 3970029, 6616715, 19850145]

約数ペア:

[(1, 19850145), (3, 6616715), (5, 3970029), (7, 2835735), (15, 1323343), (21, 945245), (35, 567147), (49, 405105), (105, 189049), (113, 175665), (147, 135035), (239, 83055), (245, 81021), (339, 58555), (565, 35133), (717, 27685), (735, 27007), (791, 25095), (1195, 16611), (1673, 11865), (1695, 11711), (2373, 8365), (3585, 5537), (3955, 5019)]