21277576

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{587}}^1$

素因数の和:813

約数の個数: 32

約数和(自身を含む): 41912640

約数和(自身を除く): 20635064

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 197, 394, 587, 788, 1174, 1576, 2348, 4531, 4696, 9062, 13501, 18124, 27002, 36248, 54004, 108008, 115639, 231278, 462556, 925112, 2659697, 5319394, 10638788, 21277576]

約数ペア:

[(1, 21277576), (2, 10638788), (4, 5319394), (8, 2659697), (23, 925112), (46, 462556), (92, 231278), (184, 115639), (197, 108008), (394, 54004), (587, 36248), (788, 27002), (1174, 18124), (1576, 13501), (2348, 9062), (4531, 4696)]