20921282235

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{71647}}^1$

素因数の和:71774

約数の個数: 80

約数和(自身を含む): 43277684736

約数和(自身を除く): 22356402501

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 103, 105, 135, 189, 309, 315, 405, 515, 567, 721, 927, 945, 1545, 2163, 2781, 2835, 3605, 4635, 6489, 8343, 10815, 13905, 19467, 32445, 41715, 58401, 71647, 97335, 214941, 292005, 358235, 501529, 644823, 1074705, 1504587, 1934469, 2507645, 3224115, 4513761, 5803407, 7379641, 7522935, 9672345, 13541283, 22138923, 22568805, 29017035, 36898205, 40623849, 51657487, 66416769, 67706415, 110694615, 154972461, 199250307, 203119245, 258287435, 332083845, 464917383, 597750921, 774862305, 996251535, 1394752149, 2324586915, 2988754605, 4184256447, 6973760745, 20921282235]

約数ペア:

[(1, 20921282235), (3, 6973760745), (5, 4184256447), (7, 2988754605), (9, 2324586915), (15, 1394752149), (21, 996251535), (27, 774862305), (35, 597750921), (45, 464917383), (63, 332083845), (81, 258287435), (103, 203119245), (105, 199250307), (135, 154972461), (189, 110694615), (309, 67706415), (315, 66416769), (405, 51657487), (515, 40623849), (567, 36898205), (721, 29017035), (927, 22568805), (945, 22138923), (1545, 13541283), (2163, 9672345), (2781, 7522935), (2835, 7379641), (3605, 5803407), (4635, 4513761), (6489, 3224115), (8343, 2507645), (10815, 1934469), (13905, 1504587), (19467, 1074705), (32445, 644823), (41715, 501529), (58401, 358235), (71647, 292005), (97335, 214941)]