21887410

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{677}}^1$

素因数の和:798

約数の個数: 32

約数和(自身を含む): 40858992

約数和(自身を除く): 18971582

約数列:

[1, 2, 5, 10, 53, 61, 106, 122, 265, 305, 530, 610, 677, 1354, 3233, 3385, 6466, 6770, 16165, 32330, 35881, 41297, 71762, 82594, 179405, 206485, 358810, 412970, 2188741, 4377482, 10943705, 21887410]

約数ペア:

[(1, 21887410), (2, 10943705), (5, 4377482), (10, 2188741), (53, 412970), (61, 358810), (106, 206485), (122, 179405), (265, 82594), (305, 71762), (530, 41297), (610, 35881), (677, 32330), (1354, 16165), (3233, 6770), (3385, 6466)]