21260016

素因数分解:

$2^4\times 3^3\times {\mathrm{29}}^1\times {\mathrm{1697}}^1$

素因数の和:1743

約数の個数: 80

約数和(自身を含む): 63165600

約数和(自身を除く): 41905584

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 29, 36, 48, 54, 58, 72, 87, 108, 116, 144, 174, 216, 232, 261, 348, 432, 464, 522, 696, 783, 1044, 1392, 1566, 1697, 2088, 3132, 3394, 4176, 5091, 6264, 6788, 10182, 12528, 13576, 15273, 20364, 27152, 30546, 40728, 45819, 49213, 61092, 81456, 91638, 98426, 122184, 147639, 183276, 196852, 244368, 295278, 366552, 393704, 442917, 590556, 733104, 787408, 885834, 1181112, 1328751, 1771668, 2362224, 2657502, 3543336, 5315004, 7086672, 10630008, 21260016]

約数ペア:

[(1, 21260016), (2, 10630008), (3, 7086672), (4, 5315004), (6, 3543336), (8, 2657502), (9, 2362224), (12, 1771668), (16, 1328751), (18, 1181112), (24, 885834), (27, 787408), (29, 733104), (36, 590556), (48, 442917), (54, 393704), (58, 366552), (72, 295278), (87, 244368), (108, 196852), (116, 183276), (144, 147639), (174, 122184), (216, 98426), (232, 91638), (261, 81456), (348, 61092), (432, 49213), (464, 45819), (522, 40728), (696, 30546), (783, 27152), (1044, 20364), (1392, 15273), (1566, 13576), (1697, 12528), (2088, 10182), (3132, 6788), (3394, 6264), (4176, 5091)]