20849895

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{577}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 40034592

約数和(自身を除く): 19184697

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 73, 99, 165, 219, 365, 495, 577, 657, 803, 1095, 1731, 2409, 2885, 3285, 4015, 5193, 6347, 7227, 8655, 12045, 19041, 25965, 31735, 36135, 42121, 57123, 95205, 126363, 210605, 285615, 379089, 463331, 631815, 1389993, 1895445, 2316655, 4169979, 6949965, 20849895]

約数ペア:

[(1, 20849895), (3, 6949965), (5, 4169979), (9, 2316655), (11, 1895445), (15, 1389993), (33, 631815), (45, 463331), (55, 379089), (73, 285615), (99, 210605), (165, 126363), (219, 95205), (365, 57123), (495, 42121), (577, 36135), (657, 31735), (803, 25965), (1095, 19041), (1731, 12045), (2409, 8655), (2885, 7227), (3285, 6347), (4015, 5193)]