21006773920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{628193}}^1$

素因数の和:628238

約数の個数: 96

約数和(自身を含む): 56989759680

約数和(自身を除く): 35982985760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 160, 176, 190, 209, 220, 304, 352, 380, 418, 440, 608, 760, 836, 880, 1045, 1520, 1672, 1760, 2090, 3040, 3344, 4180, 6688, 8360, 16720, 33440, 628193, 1256386, 2512772, 3140965, 5025544, 6281930, 6910123, 10051088, 11935667, 12563860, 13820246, 20102176, 23871334, 25127720, 27640492, 34550615, 47742668, 50255440, 55280984, 59678335, 69101230, 95485336, 100510880, 110561968, 119356670, 131292337, 138202460, 190970672, 221123936, 238713340, 262584674, 276404920, 381941344, 477426680, 525169348, 552809840, 656461685, 954853360, 1050338696, 1105619680, 1312923370, 1909706720, 2100677392, 2625846740, 4201354784, 5251693480, 10503386960, 21006773920]

約数ペア:

[(1, 21006773920), (2, 10503386960), (4, 5251693480), (5, 4201354784), (8, 2625846740), (10, 2100677392), (11, 1909706720), (16, 1312923370), (19, 1105619680), (20, 1050338696), (22, 954853360), (32, 656461685), (38, 552809840), (40, 525169348), (44, 477426680), (55, 381941344), (76, 276404920), (80, 262584674), (88, 238713340), (95, 221123936), (110, 190970672), (152, 138202460), (160, 131292337), (176, 119356670), (190, 110561968), (209, 100510880), (220, 95485336), (304, 69101230), (352, 59678335), (380, 55280984), (418, 50255440), (440, 47742668), (608, 34550615), (760, 27640492), (836, 25127720), (880, 23871334), (1045, 20102176), (1520, 13820246), (1672, 12563860), (1760, 11935667), (2090, 10051088), (3040, 6910123), (3344, 6281930), (4180, 5025544), (6688, 3140965), (8360, 2512772), (16720, 1256386), (33440, 628193)]