19922739

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 9107661

約数列:

[1, 3, 29, 31, 83, 87, 89, 93, 249, 267, 899, 2407, 2573, 2581, 2697, 2759, 7221, 7387, 7719, 7743, 8277, 22161, 74617, 80011, 214223, 223851, 228997, 240033, 642669, 686991, 6640913, 19922739]

約数ペア:

[(1, 19922739), (3, 6640913), (29, 686991), (31, 642669), (83, 240033), (87, 228997), (89, 223851), (93, 214223), (249, 80011), (267, 74617), (899, 22161), (2407, 8277), (2573, 7743), (2581, 7719), (2697, 7387), (2759, 7221)]