21000514834

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{829}}^1\times {\mathrm{1549}}^1$

素因数の和:2447

約数の個数: 64

約数和(自身を含む): 36958572000

約数和(自身を除く): 15958057166

約数列:

[1, 2, 13, 17, 26, 34, 37, 74, 221, 442, 481, 629, 829, 962, 1258, 1549, 1658, 3098, 8177, 10777, 14093, 16354, 20137, 21554, 26333, 28186, 30673, 40274, 52666, 57313, 61346, 114626, 183209, 342329, 366418, 398749, 521441, 684658, 745069, 797498, 974321, 1042882, 1284121, 1490138, 1948642, 2568242, 6778733, 12666173, 13557466, 16693573, 21830057, 25332346, 33387146, 43660114, 47512477, 95024954, 283790741, 567581482, 617662201, 807712109, 1235324402, 1615424218, 10500257417, 21000514834]

約数ペア:

[(1, 21000514834), (2, 10500257417), (13, 1615424218), (17, 1235324402), (26, 807712109), (34, 617662201), (37, 567581482), (74, 283790741), (221, 95024954), (442, 47512477), (481, 43660114), (629, 33387146), (829, 25332346), (962, 21830057), (1258, 16693573), (1549, 13557466), (1658, 12666173), (3098, 6778733), (8177, 2568242), (10777, 1948642), (14093, 1490138), (16354, 1284121), (20137, 1042882), (21554, 974321), (26333, 797498), (28186, 745069), (30673, 684658), (40274, 521441), (52666, 398749), (57313, 366418), (61346, 342329), (114626, 183209)]