18816876

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1297}}^1$

素因数の和:1351

約数の個数: 72

約数和(自身を含む): 52916864

約数和(自身を除く): 34099988

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 156, 186, 234, 279, 372, 403, 468, 558, 806, 1116, 1209, 1297, 1612, 2418, 2594, 3627, 3891, 4836, 5188, 7254, 7782, 11673, 14508, 15564, 16861, 23346, 33722, 40207, 46692, 50583, 67444, 80414, 101166, 120621, 151749, 160828, 202332, 241242, 303498, 361863, 482484, 522691, 606996, 723726, 1045382, 1447452, 1568073, 2090764, 3136146, 4704219, 6272292, 9408438, 18816876]

約数ペア:

[(1, 18816876), (2, 9408438), (3, 6272292), (4, 4704219), (6, 3136146), (9, 2090764), (12, 1568073), (13, 1447452), (18, 1045382), (26, 723726), (31, 606996), (36, 522691), (39, 482484), (52, 361863), (62, 303498), (78, 241242), (93, 202332), (117, 160828), (124, 151749), (156, 120621), (186, 101166), (234, 80414), (279, 67444), (372, 50583), (403, 46692), (468, 40207), (558, 33722), (806, 23346), (1116, 16861), (1209, 15564), (1297, 14508), (1612, 11673), (2418, 7782), (2594, 7254), (3627, 5188), (3891, 4836)]