19795545

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:255

約数の個数: 96

約数和(自身を含む): 44478720

約数和(自身を除く): 24683175

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 29, 33, 35, 45, 55, 63, 77, 87, 99, 105, 145, 165, 197, 203, 231, 261, 315, 319, 385, 435, 495, 591, 609, 693, 957, 985, 1015, 1155, 1305, 1379, 1595, 1773, 1827, 2167, 2233, 2871, 2955, 3045, 3465, 4137, 4785, 5713, 6501, 6699, 6895, 8865, 9135, 10835, 11165, 12411, 14355, 15169, 17139, 19503, 20097, 20685, 28565, 32505, 33495, 39991, 45507, 51417, 62055, 62843, 75845, 85695, 97515, 100485, 119973, 136521, 188529, 199955, 227535, 257085, 314215, 359919, 439901, 565587, 599865, 682605, 942645, 1319703, 1799595, 2199505, 2827935, 3959109, 6598515, 19795545]

約数ペア:

[(1, 19795545), (3, 6598515), (5, 3959109), (7, 2827935), (9, 2199505), (11, 1799595), (15, 1319703), (21, 942645), (29, 682605), (33, 599865), (35, 565587), (45, 439901), (55, 359919), (63, 314215), (77, 257085), (87, 227535), (99, 199955), (105, 188529), (145, 136521), (165, 119973), (197, 100485), (203, 97515), (231, 85695), (261, 75845), (315, 62843), (319, 62055), (385, 51417), (435, 45507), (495, 39991), (591, 33495), (609, 32505), (693, 28565), (957, 20685), (985, 20097), (1015, 19503), (1155, 17139), (1305, 15169), (1379, 14355), (1595, 12411), (1773, 11165), (1827, 10835), (2167, 9135), (2233, 8865), (2871, 6895), (2955, 6699), (3045, 6501), (3465, 5713), (4137, 4785)]