21427736

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{6581}}^1$

素因数の和:6635

約数の個数: 32

約数和(自身を含む): 45020880

約数和(自身を除く): 23593144

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 74, 88, 148, 296, 407, 814, 1628, 3256, 6581, 13162, 26324, 52648, 72391, 144782, 243497, 289564, 486994, 579128, 973988, 1947976, 2678467, 5356934, 10713868, 21427736]

約数ペア:

[(1, 21427736), (2, 10713868), (4, 5356934), (8, 2678467), (11, 1947976), (22, 973988), (37, 579128), (44, 486994), (74, 289564), (88, 243497), (148, 144782), (296, 72391), (407, 52648), (814, 26324), (1628, 13162), (3256, 6581)]