21936005

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1303}}^1$

素因数の和:1365

約数の個数: 32

約数和(自身を含む): 33298944

約数和(自身を除く): 11362939

約数列:

[1, 5, 7, 13, 35, 37, 65, 91, 185, 259, 455, 481, 1295, 1303, 2405, 3367, 6515, 9121, 16835, 16939, 45605, 48211, 84695, 118573, 241055, 337477, 592865, 626743, 1687385, 3133715, 4387201, 21936005]

約数ペア:

[(1, 21936005), (5, 4387201), (7, 3133715), (13, 1687385), (35, 626743), (37, 592865), (65, 337477), (91, 241055), (185, 118573), (259, 84695), (455, 48211), (481, 45605), (1295, 16939), (1303, 16835), (2405, 9121), (3367, 6515)]