21220192

素因数分解:

$2^5\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1553}}^1$

素因数の和:1631

約数の個数: 48

約数和(自身を含む): 48559392

約数和(自身を除く): 27339200

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 112, 122, 224, 244, 427, 488, 854, 976, 1553, 1708, 1952, 3106, 3416, 6212, 6832, 10871, 12424, 13664, 21742, 24848, 43484, 49696, 86968, 94733, 173936, 189466, 347872, 378932, 663131, 757864, 1326262, 1515728, 2652524, 3031456, 5305048, 10610096, 21220192]

約数ペア:

[(1, 21220192), (2, 10610096), (4, 5305048), (7, 3031456), (8, 2652524), (14, 1515728), (16, 1326262), (28, 757864), (32, 663131), (56, 378932), (61, 347872), (112, 189466), (122, 173936), (224, 94733), (244, 86968), (427, 49696), (488, 43484), (854, 24848), (976, 21742), (1553, 13664), (1708, 12424), (1952, 10871), (3106, 6832), (3416, 6212)]