21271161620

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{4643}}^1$

素因数の和:4881

約数の個数: 96

約数和(自身を含む): 47317084416

約数和(自身を除く): 26045922796

約数列:

[1, 2, 4, 5, 10, 20, 37, 41, 74, 82, 148, 151, 164, 185, 205, 302, 370, 410, 604, 740, 755, 820, 1510, 1517, 3020, 3034, 4643, 5587, 6068, 6191, 7585, 9286, 11174, 12382, 15170, 18572, 22348, 23215, 24764, 27935, 30340, 30955, 46430, 55870, 61910, 92860, 111740, 123820, 171791, 190363, 229067, 343582, 380726, 458134, 687164, 701093, 761452, 858955, 916268, 951815, 1145335, 1402186, 1717910, 1903630, 2290670, 2804372, 3435820, 3505465, 3807260, 4581340, 7010930, 7043431, 14021860, 14086862, 25940441, 28173724, 28744813, 35217155, 51880882, 57489626, 70434310, 103761764, 114979252, 129702205, 140868620, 143724065, 259404410, 287448130, 518808820, 574896260, 1063558081, 2127116162, 4254232324, 5317790405, 10635580810, 21271161620]

約数ペア:

[(1, 21271161620), (2, 10635580810), (4, 5317790405), (5, 4254232324), (10, 2127116162), (20, 1063558081), (37, 574896260), (41, 518808820), (74, 287448130), (82, 259404410), (148, 143724065), (151, 140868620), (164, 129702205), (185, 114979252), (205, 103761764), (302, 70434310), (370, 57489626), (410, 51880882), (604, 35217155), (740, 28744813), (755, 28173724), (820, 25940441), (1510, 14086862), (1517, 14021860), (3020, 7043431), (3034, 7010930), (4643, 4581340), (5587, 3807260), (6068, 3505465), (6191, 3435820), (7585, 2804372), (9286, 2290670), (11174, 1903630), (12382, 1717910), (15170, 1402186), (18572, 1145335), (22348, 951815), (23215, 916268), (24764, 858955), (27935, 761452), (30340, 701093), (30955, 687164), (46430, 458134), (55870, 380726), (61910, 343582), (92860, 229067), (111740, 190363), (123820, 171791)]