21775897

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:201

約数の個数: 32

約数和(自身を含む): 27216000

約数和(自身を除く): 5440103

約数列:

[1, 11, 13, 29, 59, 89, 143, 319, 377, 649, 767, 979, 1157, 1711, 2581, 4147, 5251, 8437, 12727, 18821, 22243, 28391, 33553, 57761, 68263, 152279, 244673, 369083, 750893, 1675069, 1979627, 21775897]

約数ペア:

[(1, 21775897), (11, 1979627), (13, 1675069), (29, 750893), (59, 369083), (89, 244673), (143, 152279), (319, 68263), (377, 57761), (649, 33553), (767, 28391), (979, 22243), (1157, 18821), (1711, 12727), (2581, 8437), (4147, 5251)]