17965864

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 40550400

約数和(自身を除く): 22584536

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 79, 124, 131, 158, 217, 248, 262, 316, 434, 524, 553, 632, 868, 917, 1048, 1106, 1736, 1834, 2212, 2449, 3668, 4061, 4424, 4898, 7336, 8122, 9796, 10349, 16244, 17143, 19592, 20698, 28427, 32488, 34286, 41396, 56854, 68572, 72443, 82792, 113708, 137144, 144886, 227416, 289772, 320819, 579544, 641638, 1283276, 2245733, 2566552, 4491466, 8982932, 17965864]

約数ペア:

[(1, 17965864), (2, 8982932), (4, 4491466), (7, 2566552), (8, 2245733), (14, 1283276), (28, 641638), (31, 579544), (56, 320819), (62, 289772), (79, 227416), (124, 144886), (131, 137144), (158, 113708), (217, 82792), (248, 72443), (262, 68572), (316, 56854), (434, 41396), (524, 34286), (553, 32488), (632, 28427), (868, 20698), (917, 19592), (1048, 17143), (1106, 16244), (1736, 10349), (1834, 9796), (2212, 8122), (2449, 7336), (3668, 4898), (4061, 4424)]