21231208

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{6073}}^1$

素因数の和:6121

約数の個数: 32

約数和(自身を含む): 43732800

約数和(自身を除く): 22501592

約数列:

[1, 2, 4, 8, 19, 23, 38, 46, 76, 92, 152, 184, 437, 874, 1748, 3496, 6073, 12146, 24292, 48584, 115387, 139679, 230774, 279358, 461548, 558716, 923096, 1117432, 2653901, 5307802, 10615604, 21231208]

約数ペア:

[(1, 21231208), (2, 10615604), (4, 5307802), (8, 2653901), (19, 1117432), (23, 923096), (38, 558716), (46, 461548), (76, 279358), (92, 230774), (152, 139679), (184, 115387), (437, 48584), (874, 24292), (1748, 12146), (3496, 6073)]