21134584359

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{73681}}^1$

素因数の和:73880

約数の個数: 48

約数和(自身を含む): 36322278720

約数和(自身を除く): 15187694361

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 157, 203, 261, 471, 609, 1099, 1413, 1827, 3297, 4553, 9891, 13659, 31871, 40977, 73681, 95613, 221043, 286839, 515767, 663129, 1547301, 2136749, 4641903, 6410247, 11567917, 14957243, 19230741, 34703751, 44871729, 80975419, 104111253, 134615187, 242926257, 335469593, 728778771, 1006408779, 2348287151, 3019226337, 7044861453, 21134584359]

約数ペア:

[(1, 21134584359), (3, 7044861453), (7, 3019226337), (9, 2348287151), (21, 1006408779), (29, 728778771), (63, 335469593), (87, 242926257), (157, 134615187), (203, 104111253), (261, 80975419), (471, 44871729), (609, 34703751), (1099, 19230741), (1413, 14957243), (1827, 11567917), (3297, 6410247), (4553, 4641903), (9891, 2136749), (13659, 1547301), (31871, 663129), (40977, 515767), (73681, 286839), (95613, 221043)]