20917932

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{277}}^1$

素因数の和:351

約数の個数: 96

約数和(自身を含む): 59781120

約数和(自身を除く): 38863188

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 29, 31, 42, 58, 62, 84, 87, 93, 116, 124, 174, 186, 203, 217, 277, 348, 372, 406, 434, 554, 609, 651, 812, 831, 868, 899, 1108, 1218, 1302, 1662, 1798, 1939, 2436, 2604, 2697, 3324, 3596, 3878, 5394, 5817, 6293, 7756, 8033, 8587, 10788, 11634, 12586, 16066, 17174, 18879, 23268, 24099, 25172, 25761, 32132, 34348, 37758, 48198, 51522, 56231, 60109, 75516, 96396, 103044, 112462, 120218, 168693, 180327, 224924, 240436, 249023, 337386, 360654, 498046, 674772, 721308, 747069, 996092, 1494138, 1743161, 2988276, 3486322, 5229483, 6972644, 10458966, 20917932]

約数ペア:

[(1, 20917932), (2, 10458966), (3, 6972644), (4, 5229483), (6, 3486322), (7, 2988276), (12, 1743161), (14, 1494138), (21, 996092), (28, 747069), (29, 721308), (31, 674772), (42, 498046), (58, 360654), (62, 337386), (84, 249023), (87, 240436), (93, 224924), (116, 180327), (124, 168693), (174, 120218), (186, 112462), (203, 103044), (217, 96396), (277, 75516), (348, 60109), (372, 56231), (406, 51522), (434, 48198), (554, 37758), (609, 34348), (651, 32132), (812, 25761), (831, 25172), (868, 24099), (899, 23268), (1108, 18879), (1218, 17174), (1302, 16066), (1662, 12586), (1798, 11634), (1939, 10788), (2436, 8587), (2604, 8033), (2697, 7756), (3324, 6293), (3596, 5817), (3878, 5394)]