21693848

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{307}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 45470040

約数和(自身を除く): 23776192

約数列:

[1, 2, 4, 8, 11, 22, 44, 73, 88, 121, 146, 242, 292, 307, 484, 584, 614, 803, 968, 1228, 1606, 2456, 3212, 3377, 6424, 6754, 8833, 13508, 17666, 22411, 27016, 35332, 37147, 44822, 70664, 74294, 89644, 148588, 179288, 246521, 297176, 493042, 986084, 1972168, 2711731, 5423462, 10846924, 21693848]

約数ペア:

[(1, 21693848), (2, 10846924), (4, 5423462), (8, 2711731), (11, 1972168), (22, 986084), (44, 493042), (73, 297176), (88, 246521), (121, 179288), (146, 148588), (242, 89644), (292, 74294), (307, 70664), (484, 44822), (584, 37147), (614, 35332), (803, 27016), (968, 22411), (1228, 17666), (1606, 13508), (2456, 8833), (3212, 6754), (3377, 6424)]