21173148

素因数分解:

$2^2\times 3^2\times {\mathrm{727}}^1\times {\mathrm{809}}^1$

素因数の和:1546

約数の個数: 36

約数和(自身を含む): 53660880

約数和(自身を除く): 32487732

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 727, 809, 1454, 1618, 2181, 2427, 2908, 3236, 4362, 4854, 6543, 7281, 8724, 9708, 13086, 14562, 26172, 29124, 588143, 1176286, 1764429, 2352572, 3528858, 5293287, 7057716, 10586574, 21173148]

約数ペア:

[(1, 21173148), (2, 10586574), (3, 7057716), (4, 5293287), (6, 3528858), (9, 2352572), (12, 1764429), (18, 1176286), (36, 588143), (727, 29124), (809, 26172), (1454, 14562), (1618, 13086), (2181, 9708), (2427, 8724), (2908, 7281), (3236, 6543), (4362, 4854)]