21291528

素因数分解:

$2^3\times 3^1\times {\mathrm{67}}^1\times {\mathrm{13241}}^1$

素因数の和:13317

約数の個数: 32

約数和(自身を含む): 54027360

約数和(自身を除く): 32735832

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 67, 134, 201, 268, 402, 536, 804, 1608, 13241, 26482, 39723, 52964, 79446, 105928, 158892, 317784, 887147, 1774294, 2661441, 3548588, 5322882, 7097176, 10645764, 21291528]

約数ペア:

[(1, 21291528), (2, 10645764), (3, 7097176), (4, 5322882), (6, 3548588), (8, 2661441), (12, 1774294), (24, 887147), (67, 317784), (134, 158892), (201, 105928), (268, 79446), (402, 52964), (536, 39723), (804, 26482), (1608, 13241)]