19818390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{461}}^1\times {\mathrm{1433}}^1$

素因数の和:1904

約数の個数: 32

約数和(自身を含む): 47700576

約数和(自身を除く): 27882186

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 461, 922, 1383, 1433, 2305, 2766, 2866, 4299, 4610, 6915, 7165, 8598, 13830, 14330, 21495, 42990, 660613, 1321226, 1981839, 3303065, 3963678, 6606130, 9909195, 19818390]

約数ペア:

[(1, 19818390), (2, 9909195), (3, 6606130), (5, 3963678), (6, 3303065), (10, 1981839), (15, 1321226), (30, 660613), (461, 42990), (922, 21495), (1383, 14330), (1433, 13830), (2305, 8598), (2766, 7165), (2866, 6915), (4299, 4610)]