21388374

素因数分解:

$2^1\times 3^5\times 7^1\times {\mathrm{6287}}^1$

素因数の和:6311

約数の個数: 48

約数和(自身を含む): 54931968

約数和(自身を除く): 33543594

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 243, 378, 486, 567, 1134, 1701, 3402, 6287, 12574, 18861, 37722, 44009, 56583, 88018, 113166, 132027, 169749, 264054, 339498, 396081, 509247, 792162, 1018494, 1188243, 1527741, 2376486, 3055482, 3564729, 7129458, 10694187, 21388374]

約数ペア:

[(1, 21388374), (2, 10694187), (3, 7129458), (6, 3564729), (7, 3055482), (9, 2376486), (14, 1527741), (18, 1188243), (21, 1018494), (27, 792162), (42, 509247), (54, 396081), (63, 339498), (81, 264054), (126, 169749), (162, 132027), (189, 113166), (243, 88018), (378, 56583), (486, 44009), (567, 37722), (1134, 18861), (1701, 12574), (3402, 6287)]