21449745

素因数分解:

$3^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2693}}^1$

素因数の和:2766

約数の個数: 32

約数和(自身を含む): 38793600

約数和(自身を除く): 17343855

約数列:

[1, 3, 5, 9, 15, 27, 45, 59, 135, 177, 295, 531, 885, 1593, 2655, 2693, 7965, 8079, 13465, 24237, 40395, 72711, 121185, 158887, 363555, 476661, 794435, 1429983, 2383305, 4289949, 7149915, 21449745]

約数ペア:

[(1, 21449745), (3, 7149915), (5, 4289949), (9, 2383305), (15, 1429983), (27, 794435), (45, 476661), (59, 363555), (135, 158887), (177, 121185), (295, 72711), (531, 40395), (885, 24237), (1593, 13465), (2655, 8079), (2693, 7965)]