21754436

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 22275004

約数列:

[1, 2, 4, 11, 22, 31, 41, 44, 62, 82, 124, 164, 341, 389, 451, 682, 778, 902, 1271, 1364, 1556, 1804, 2542, 4279, 5084, 8558, 12059, 13981, 15949, 17116, 24118, 27962, 31898, 48236, 55924, 63796, 132649, 175439, 265298, 350878, 494419, 530596, 701756, 988838, 1977676, 5438609, 10877218, 21754436]

約数ペア:

[(1, 21754436), (2, 10877218), (4, 5438609), (11, 1977676), (22, 988838), (31, 701756), (41, 530596), (44, 494419), (62, 350878), (82, 265298), (124, 175439), (164, 132649), (341, 63796), (389, 55924), (451, 48236), (682, 31898), (778, 27962), (902, 24118), (1271, 17116), (1364, 15949), (1556, 13981), (1804, 12059), (2542, 8558), (4279, 5084)]