20321637

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 11611803

約数列:

[1, 3, 7, 21, 83, 89, 131, 249, 267, 393, 581, 623, 917, 1743, 1869, 2751, 7387, 10873, 11659, 22161, 32619, 34977, 51709, 76111, 81613, 155127, 228333, 244839, 967697, 2903091, 6773879, 20321637]

約数ペア:

[(1, 20321637), (3, 6773879), (7, 2903091), (21, 967697), (83, 244839), (89, 228333), (131, 155127), (249, 81613), (267, 76111), (393, 51709), (581, 34977), (623, 32619), (917, 22161), (1743, 11659), (1869, 10873), (2751, 7387)]