21410325

素因数分解:

$3^4\times 5^2\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:228

約数の個数: 60

約数和(自身を含む): 40435780

約数和(自身を除く): 19025455

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 97, 109, 135, 225, 291, 327, 405, 485, 545, 675, 873, 981, 1455, 1635, 2025, 2425, 2619, 2725, 2943, 4365, 4905, 7275, 7857, 8175, 8829, 10573, 13095, 14715, 21825, 24525, 31719, 39285, 44145, 52865, 65475, 73575, 95157, 158595, 196425, 220725, 264325, 285471, 475785, 792975, 856413, 1427355, 2378925, 4282065, 7136775, 21410325]

約数ペア:

[(1, 21410325), (3, 7136775), (5, 4282065), (9, 2378925), (15, 1427355), (25, 856413), (27, 792975), (45, 475785), (75, 285471), (81, 264325), (97, 220725), (109, 196425), (135, 158595), (225, 95157), (291, 73575), (327, 65475), (405, 52865), (485, 44145), (545, 39285), (675, 31719), (873, 24525), (981, 21825), (1455, 14715), (1635, 13095), (2025, 10573), (2425, 8829), (2619, 8175), (2725, 7857), (2943, 7275), (4365, 4905)]