31997385

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{647}}^1$

素因数の和:822

約数の個数: 48

約数和(自身を含む): 63887616

約数和(自身を除く): 31890231

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 157, 315, 471, 647, 785, 1099, 1413, 1941, 2355, 3235, 3297, 4529, 5495, 5823, 7065, 9705, 9891, 13587, 16485, 22645, 29115, 40761, 49455, 67935, 101579, 203805, 304737, 507895, 711053, 914211, 1523685, 2133159, 3555265, 4571055, 6399477, 10665795, 31997385]

約数ペア:

[(1, 31997385), (3, 10665795), (5, 6399477), (7, 4571055), (9, 3555265), (15, 2133159), (21, 1523685), (35, 914211), (45, 711053), (63, 507895), (105, 304737), (157, 203805), (315, 101579), (471, 67935), (647, 49455), (785, 40761), (1099, 29115), (1413, 22645), (1941, 16485), (2355, 13587), (3235, 9891), (3297, 9705), (4529, 7065), (5495, 5823)]