18289172

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 37255680

約数和(自身を除く): 18966508

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 131, 167, 209, 262, 334, 418, 524, 668, 836, 1441, 1837, 2489, 2882, 3173, 3674, 4978, 5764, 6346, 7348, 9956, 12692, 21877, 27379, 34903, 43754, 54758, 69806, 87508, 109516, 139612, 240647, 415663, 481294, 831326, 962588, 1662652, 4572293, 9144586, 18289172]

約数ペア:

[(1, 18289172), (2, 9144586), (4, 4572293), (11, 1662652), (19, 962588), (22, 831326), (38, 481294), (44, 415663), (76, 240647), (131, 139612), (167, 109516), (209, 87508), (262, 69806), (334, 54758), (418, 43754), (524, 34903), (668, 27379), (836, 21877), (1441, 12692), (1837, 9956), (2489, 7348), (2882, 6346), (3173, 5764), (3674, 4978)]