20994246

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1831}}^1$

素因数の和:1866

約数の個数: 72

約数和(自身を含む): 57015504

約数和(自身を除く): 36021258

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 49, 63, 78, 91, 98, 117, 126, 147, 182, 234, 273, 294, 441, 546, 637, 819, 882, 1274, 1638, 1831, 1911, 3662, 3822, 5493, 5733, 10986, 11466, 12817, 16479, 23803, 25634, 32958, 38451, 47606, 71409, 76902, 89719, 115353, 142818, 166621, 179438, 214227, 230706, 269157, 333242, 428454, 499863, 538314, 807471, 999726, 1166347, 1499589, 1614942, 2332694, 2999178, 3499041, 6998082, 10497123, 20994246]

約数ペア:

[(1, 20994246), (2, 10497123), (3, 6998082), (6, 3499041), (7, 2999178), (9, 2332694), (13, 1614942), (14, 1499589), (18, 1166347), (21, 999726), (26, 807471), (39, 538314), (42, 499863), (49, 428454), (63, 333242), (78, 269157), (91, 230706), (98, 214227), (117, 179438), (126, 166621), (147, 142818), (182, 115353), (234, 89719), (273, 76902), (294, 71409), (441, 47606), (546, 38451), (637, 32958), (819, 25634), (882, 23803), (1274, 16479), (1638, 12817), (1831, 11466), (1911, 10986), (3662, 5733), (3822, 5493)]