20210815856

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{22259}}^1$

素因数の和:22363

約数の個数: 120

約数和(自身を含む): 49927221120

約数和(自身を除く): 29716405264

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 67, 77, 88, 112, 121, 134, 154, 176, 242, 268, 308, 469, 484, 536, 616, 737, 847, 938, 968, 1072, 1232, 1474, 1694, 1876, 1936, 2948, 3388, 3752, 5159, 5896, 6776, 7504, 8107, 10318, 11792, 13552, 16214, 20636, 22259, 32428, 41272, 44518, 56749, 64856, 82544, 89036, 113498, 129712, 155813, 178072, 226996, 244849, 311626, 356144, 453992, 489698, 623252, 907984, 979396, 1246504, 1491353, 1713943, 1958792, 2493008, 2693339, 2982706, 3427886, 3917584, 5386678, 5965412, 6855772, 10439471, 10773356, 11930824, 13711544, 16404883, 18853373, 20878942, 21546712, 23861648, 27423088, 32809766, 37706746, 41757884, 43093424, 65619532, 75413492, 83515768, 114834181, 131239064, 150826984, 167031536, 180453713, 229668362, 262478128, 301653968, 360907426, 459336724, 721814852, 918673448, 1263175991, 1443629704, 1837346896, 2526351982, 2887259408, 5052703964, 10105407928, 20210815856]

約数ペア:

[(1, 20210815856), (2, 10105407928), (4, 5052703964), (7, 2887259408), (8, 2526351982), (11, 1837346896), (14, 1443629704), (16, 1263175991), (22, 918673448), (28, 721814852), (44, 459336724), (56, 360907426), (67, 301653968), (77, 262478128), (88, 229668362), (112, 180453713), (121, 167031536), (134, 150826984), (154, 131239064), (176, 114834181), (242, 83515768), (268, 75413492), (308, 65619532), (469, 43093424), (484, 41757884), (536, 37706746), (616, 32809766), (737, 27423088), (847, 23861648), (938, 21546712), (968, 20878942), (1072, 18853373), (1232, 16404883), (1474, 13711544), (1694, 11930824), (1876, 10773356), (1936, 10439471), (2948, 6855772), (3388, 5965412), (3752, 5386678), (5159, 3917584), (5896, 3427886), (6776, 2982706), (7504, 2693339), (8107, 2493008), (10318, 1958792), (11792, 1713943), (13552, 1491353), (16214, 1246504), (20636, 979396), (22259, 907984), (32428, 623252), (41272, 489698), (44518, 453992), (56749, 356144), (64856, 311626), (82544, 244849), (89036, 226996), (113498, 178072), (129712, 155813)]