20960406

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:485

約数の個数: 48

約数和(自身を含む): 47814624

約数和(自身を除く): 26854218

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 197, 207, 257, 394, 414, 514, 591, 771, 1182, 1542, 1773, 2313, 3546, 4531, 4626, 5911, 9062, 11822, 13593, 17733, 27186, 35466, 40779, 50629, 53199, 81558, 101258, 106398, 151887, 303774, 455661, 911322, 1164467, 2328934, 3493401, 6986802, 10480203, 20960406]

約数ペア:

[(1, 20960406), (2, 10480203), (3, 6986802), (6, 3493401), (9, 2328934), (18, 1164467), (23, 911322), (46, 455661), (69, 303774), (138, 151887), (197, 106398), (207, 101258), (257, 81558), (394, 53199), (414, 50629), (514, 40779), (591, 35466), (771, 27186), (1182, 17733), (1542, 13593), (1773, 11822), (2313, 9062), (3546, 5911), (4531, 4626)]