20889288

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:248

約数の個数: 144

約数和(自身を含む): 68290560

約数和(自身を除く): 47401272

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 31, 36, 42, 49, 56, 62, 63, 72, 84, 93, 98, 124, 126, 147, 168, 186, 191, 196, 217, 248, 252, 279, 294, 372, 382, 392, 434, 441, 504, 558, 573, 588, 651, 744, 764, 868, 882, 1116, 1146, 1176, 1302, 1337, 1519, 1528, 1719, 1736, 1764, 1953, 2232, 2292, 2604, 2674, 3038, 3438, 3528, 3906, 4011, 4557, 4584, 5208, 5348, 5921, 6076, 6876, 7812, 8022, 9114, 9359, 10696, 11842, 12033, 12152, 13671, 13752, 15624, 16044, 17763, 18228, 18718, 23684, 24066, 27342, 28077, 32088, 35526, 36456, 37436, 41447, 47368, 48132, 53289, 54684, 56154, 71052, 74872, 82894, 84231, 96264, 106578, 109368, 112308, 124341, 142104, 165788, 168462, 213156, 224616, 248682, 290129, 331576, 336924, 373023, 426312, 497364, 580258, 673848, 746046, 870387, 994728, 1160516, 1492092, 1740774, 2321032, 2611161, 2984184, 3481548, 5222322, 6963096, 10444644, 20889288]

約数ペア:

[(1, 20889288), (2, 10444644), (3, 6963096), (4, 5222322), (6, 3481548), (7, 2984184), (8, 2611161), (9, 2321032), (12, 1740774), (14, 1492092), (18, 1160516), (21, 994728), (24, 870387), (28, 746046), (31, 673848), (36, 580258), (42, 497364), (49, 426312), (56, 373023), (62, 336924), (63, 331576), (72, 290129), (84, 248682), (93, 224616), (98, 213156), (124, 168462), (126, 165788), (147, 142104), (168, 124341), (186, 112308), (191, 109368), (196, 106578), (217, 96264), (248, 84231), (252, 82894), (279, 74872), (294, 71052), (372, 56154), (382, 54684), (392, 53289), (434, 48132), (441, 47368), (504, 41447), (558, 37436), (573, 36456), (588, 35526), (651, 32088), (744, 28077), (764, 27342), (868, 24066), (882, 23684), (1116, 18718), (1146, 18228), (1176, 17763), (1302, 16044), (1337, 15624), (1519, 13752), (1528, 13671), (1719, 12152), (1736, 12033), (1764, 11842), (1953, 10696), (2232, 9359), (2292, 9114), (2604, 8022), (2674, 7812), (3038, 6876), (3438, 6076), (3528, 5921), (3906, 5348), (4011, 5208), (4557, 4584)]