18372825

素因数分解:

$3^4\times 5^2\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:276

約数の個数: 60

約数和(自身を含む): 34989328

約数和(自身を除く): 16616503

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 75, 81, 129, 135, 211, 215, 225, 387, 405, 633, 645, 675, 1055, 1075, 1161, 1899, 1935, 2025, 3165, 3225, 3483, 5275, 5697, 5805, 9073, 9495, 9675, 15825, 17091, 17415, 27219, 28485, 29025, 45365, 47475, 81657, 85455, 87075, 136095, 142425, 226825, 244971, 408285, 427275, 680475, 734913, 1224855, 2041425, 3674565, 6124275, 18372825]

約数ペア:

[(1, 18372825), (3, 6124275), (5, 3674565), (9, 2041425), (15, 1224855), (25, 734913), (27, 680475), (43, 427275), (45, 408285), (75, 244971), (81, 226825), (129, 142425), (135, 136095), (211, 87075), (215, 85455), (225, 81657), (387, 47475), (405, 45365), (633, 29025), (645, 28485), (675, 27219), (1055, 17415), (1075, 17091), (1161, 15825), (1899, 9675), (1935, 9495), (2025, 9073), (3165, 5805), (3225, 5697), (3483, 5275)]