20948193

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:179

約数の個数: 64

約数和(自身を含む): 38092800

約数和(自身を除く): 17144607

約数列:

[1, 3, 7, 9, 21, 23, 27, 61, 63, 69, 79, 161, 183, 189, 207, 237, 427, 483, 549, 553, 621, 711, 1281, 1403, 1449, 1647, 1659, 1817, 2133, 3843, 4209, 4347, 4819, 4977, 5451, 9821, 11529, 12627, 12719, 14457, 14931, 16353, 29463, 33733, 37881, 38157, 43371, 49059, 88389, 101199, 110837, 114471, 130113, 265167, 303597, 332511, 343413, 775859, 910791, 997533, 2327577, 2992599, 6982731, 20948193]

約数ペア:

[(1, 20948193), (3, 6982731), (7, 2992599), (9, 2327577), (21, 997533), (23, 910791), (27, 775859), (61, 343413), (63, 332511), (69, 303597), (79, 265167), (161, 130113), (183, 114471), (189, 110837), (207, 101199), (237, 88389), (427, 49059), (483, 43371), (549, 38157), (553, 37881), (621, 33733), (711, 29463), (1281, 16353), (1403, 14931), (1449, 14457), (1647, 12719), (1659, 12627), (1817, 11529), (2133, 9821), (3843, 5451), (4209, 4977), (4347, 4819)]