21241428

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{136163}}^1$

素因数の和:136183

約数の個数: 24

約数和(自身を含む): 53376288

約数和(自身を除く): 32134860

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 136163, 272326, 408489, 544652, 816978, 1633956, 1770119, 3540238, 5310357, 7080476, 10620714, 21241428]

約数ペア:

[(1, 21241428), (2, 10620714), (3, 7080476), (4, 5310357), (6, 3540238), (12, 1770119), (13, 1633956), (26, 816978), (39, 544652), (52, 408489), (78, 272326), (156, 136163)]