28841988

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:473

約数の個数: 72

約数和(自身を含む): 79008384

約数和(自身を除く): 50166396

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 181, 196, 271, 294, 362, 542, 543, 588, 724, 813, 1084, 1086, 1267, 1626, 1897, 2172, 2534, 3252, 3794, 3801, 5068, 5691, 7588, 7602, 8869, 11382, 13279, 15204, 17738, 22764, 26558, 26607, 35476, 39837, 49051, 53116, 53214, 79674, 98102, 106428, 147153, 159348, 196204, 294306, 343357, 588612, 686714, 1030071, 1373428, 2060142, 2403499, 4120284, 4806998, 7210497, 9613996, 14420994, 28841988]

約数ペア:

[(1, 28841988), (2, 14420994), (3, 9613996), (4, 7210497), (6, 4806998), (7, 4120284), (12, 2403499), (14, 2060142), (21, 1373428), (28, 1030071), (42, 686714), (49, 588612), (84, 343357), (98, 294306), (147, 196204), (181, 159348), (196, 147153), (271, 106428), (294, 98102), (362, 79674), (542, 53214), (543, 53116), (588, 49051), (724, 39837), (813, 35476), (1084, 26607), (1086, 26558), (1267, 22764), (1626, 17738), (1897, 15204), (2172, 13279), (2534, 11382), (3252, 8869), (3794, 7602), (3801, 7588), (5068, 5691)]