21820664

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1613}}^1$

素因数の和:1727

約数の個数: 32

約数和(自身を含む): 43578000

約数和(自身を除く): 21757336

約数列:

[1, 2, 4, 8, 19, 38, 76, 89, 152, 178, 356, 712, 1613, 1691, 3226, 3382, 6452, 6764, 12904, 13528, 30647, 61294, 122588, 143557, 245176, 287114, 574228, 1148456, 2727583, 5455166, 10910332, 21820664]

約数ペア:

[(1, 21820664), (2, 10910332), (4, 5455166), (8, 2727583), (19, 1148456), (38, 574228), (76, 287114), (89, 245176), (152, 143557), (178, 122588), (356, 61294), (712, 30647), (1613, 13528), (1691, 12904), (3226, 6764), (3382, 6452)]