19439914

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 32901120

約数和(自身を除く): 13461206

約数列:

[1, 2, 13, 26, 31, 62, 89, 178, 271, 403, 542, 806, 1157, 2314, 2759, 3523, 5518, 7046, 8401, 16802, 24119, 35867, 48238, 71734, 109213, 218426, 313547, 627094, 747689, 1495378, 9719957, 19439914]

約数ペア:

[(1, 19439914), (2, 9719957), (13, 1495378), (26, 747689), (31, 627094), (62, 313547), (89, 218426), (178, 109213), (271, 71734), (403, 48238), (542, 35867), (806, 24119), (1157, 16802), (2314, 8401), (2759, 7046), (3523, 5518)]