18617976

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19891}}^1$

素因数の和:19916

約数の個数: 48

約数和(自身を含む): 54305160

約数和(自身を除く): 35687184

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 19891, 39782, 59673, 79564, 119346, 159128, 179019, 238692, 258583, 358038, 477384, 517166, 716076, 775749, 1034332, 1432152, 1551498, 2068664, 2327247, 3102996, 4654494, 6205992, 9308988, 18617976]

約数ペア:

[(1, 18617976), (2, 9308988), (3, 6205992), (4, 4654494), (6, 3102996), (8, 2327247), (9, 2068664), (12, 1551498), (13, 1432152), (18, 1034332), (24, 775749), (26, 716076), (36, 517166), (39, 477384), (52, 358038), (72, 258583), (78, 238692), (104, 179019), (117, 159128), (156, 119346), (234, 79564), (312, 59673), (468, 39782), (936, 19891)]