19983873

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1031}}^1$

素因数の和:1125

約数の個数: 32

約数和(自身を含む): 33288192

約数和(自身を除く): 13304319

約数列:

[1, 3, 7, 13, 21, 39, 71, 91, 213, 273, 497, 923, 1031, 1491, 2769, 3093, 6461, 7217, 13403, 19383, 21651, 40209, 73201, 93821, 219603, 281463, 512407, 951613, 1537221, 2854839, 6661291, 19983873]

約数ペア:

[(1, 19983873), (3, 6661291), (7, 2854839), (13, 1537221), (21, 951613), (39, 512407), (71, 281463), (91, 219603), (213, 93821), (273, 73201), (497, 40209), (923, 21651), (1031, 19383), (1491, 13403), (2769, 7217), (3093, 6461)]