21751158

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 51819264

約数和(自身を除く): 30068106

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 101, 143, 202, 251, 286, 303, 429, 502, 606, 753, 858, 1111, 1313, 1506, 2222, 2626, 2761, 3263, 3333, 3939, 5522, 6526, 6666, 7878, 8283, 9789, 14443, 16566, 19578, 25351, 28886, 35893, 43329, 50702, 71786, 76053, 86658, 107679, 152106, 215358, 278861, 329563, 557722, 659126, 836583, 988689, 1673166, 1977378, 3625193, 7250386, 10875579, 21751158]

約数ペア:

[(1, 21751158), (2, 10875579), (3, 7250386), (6, 3625193), (11, 1977378), (13, 1673166), (22, 988689), (26, 836583), (33, 659126), (39, 557722), (66, 329563), (78, 278861), (101, 215358), (143, 152106), (202, 107679), (251, 86658), (286, 76053), (303, 71786), (429, 50702), (502, 43329), (606, 35893), (753, 28886), (858, 25351), (1111, 19578), (1313, 16566), (1506, 14443), (2222, 9789), (2626, 8283), (2761, 7878), (3263, 6666), (3333, 6526), (3939, 5522)]