21229268

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{191}}^1\times {\mathrm{751}}^1$

素因数の和:983

約数の個数: 24

約数和(自身を含む): 38406144

約数和(自身を除く): 17176876

約数列:

[1, 2, 4, 37, 74, 148, 191, 382, 751, 764, 1502, 3004, 7067, 14134, 27787, 28268, 55574, 111148, 143441, 286882, 573764, 5307317, 10614634, 21229268]

約数ペア:

[(1, 21229268), (2, 10614634), (4, 5307317), (37, 573764), (74, 286882), (148, 143441), (191, 111148), (382, 55574), (751, 28268), (764, 27787), (1502, 14134), (3004, 7067)]