18214735

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:85

約数の個数: 64

約数和(自身を含む): 30357504

約数和(自身を除く): 12142769

約数列:

[1, 5, 7, 11, 17, 23, 35, 55, 77, 85, 115, 119, 121, 161, 187, 253, 385, 391, 595, 605, 805, 847, 935, 1265, 1309, 1331, 1771, 1955, 2057, 2737, 2783, 4235, 4301, 6545, 6655, 8855, 9317, 10285, 13685, 13915, 14399, 19481, 21505, 22627, 30107, 30613, 46585, 47311, 71995, 97405, 113135, 150535, 153065, 158389, 214291, 236555, 331177, 520421, 791945, 1071455, 1655885, 2602105, 3642947, 18214735]

約数ペア:

[(1, 18214735), (5, 3642947), (7, 2602105), (11, 1655885), (17, 1071455), (23, 791945), (35, 520421), (55, 331177), (77, 236555), (85, 214291), (115, 158389), (119, 153065), (121, 150535), (161, 113135), (187, 97405), (253, 71995), (385, 47311), (391, 46585), (595, 30613), (605, 30107), (805, 22627), (847, 21505), (935, 19481), (1265, 14399), (1309, 13915), (1331, 13685), (1771, 10285), (1955, 9317), (2057, 8855), (2737, 6655), (2783, 6545), (4235, 4301)]