19212805

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 25855200

約数和(自身を除く): 6642395

約数列:

[1, 5, 17, 37, 41, 85, 149, 185, 205, 629, 697, 745, 1517, 2533, 3145, 3485, 5513, 6109, 7585, 12665, 25789, 27565, 30545, 93721, 103853, 128945, 226033, 468605, 519265, 1130165, 3842561, 19212805]

約数ペア:

[(1, 19212805), (5, 3842561), (17, 1130165), (37, 519265), (41, 468605), (85, 226033), (149, 128945), (185, 103853), (205, 93721), (629, 30545), (697, 27565), (745, 25789), (1517, 12665), (2533, 7585), (3145, 6109), (3485, 5513)]