20894445

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1$

素因数の和:243

約数の個数: 96

約数和(自身を含む): 45287424

約数和(自身を除く): 24392979

約数列:

[1, 3, 5, 9, 11, 13, 15, 17, 33, 39, 45, 51, 55, 65, 85, 99, 117, 143, 153, 165, 187, 191, 195, 221, 255, 429, 495, 561, 573, 585, 663, 715, 765, 935, 955, 1105, 1287, 1683, 1719, 1989, 2101, 2145, 2431, 2483, 2805, 2865, 3247, 3315, 6303, 6435, 7293, 7449, 8415, 8595, 9741, 9945, 10505, 12155, 12415, 16235, 18909, 21879, 22347, 27313, 29223, 31515, 35717, 36465, 37245, 42211, 48705, 81939, 94545, 107151, 109395, 111735, 126633, 136565, 146115, 178585, 211055, 245817, 321453, 379899, 409695, 464321, 535755, 633165, 1229085, 1392963, 1607265, 1899495, 2321605, 4178889, 6964815, 20894445]

約数ペア:

[(1, 20894445), (3, 6964815), (5, 4178889), (9, 2321605), (11, 1899495), (13, 1607265), (15, 1392963), (17, 1229085), (33, 633165), (39, 535755), (45, 464321), (51, 409695), (55, 379899), (65, 321453), (85, 245817), (99, 211055), (117, 178585), (143, 146115), (153, 136565), (165, 126633), (187, 111735), (191, 109395), (195, 107151), (221, 94545), (255, 81939), (429, 48705), (495, 42211), (561, 37245), (573, 36465), (585, 35717), (663, 31515), (715, 29223), (765, 27313), (935, 22347), (955, 21879), (1105, 18909), (1287, 16235), (1683, 12415), (1719, 12155), (1989, 10505), (2101, 9945), (2145, 9741), (2431, 8595), (2483, 8415), (2805, 7449), (2865, 7293), (3247, 6435), (3315, 6303)]