21030663076

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1\times {\mathrm{521}}^1$

素因数の和:917

約数の個数: 96

約数和(自身を含む): 41567904000

約数和(自身を除く): 20537240924

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 157, 199, 314, 323, 398, 521, 628, 646, 796, 1042, 1292, 2084, 2669, 2983, 3383, 3781, 5338, 5966, 6766, 7562, 8857, 9899, 10676, 11932, 13532, 15124, 17714, 19798, 31243, 35428, 39596, 50711, 62486, 64277, 81797, 101422, 103679, 124972, 128554, 163594, 168283, 202844, 207358, 257108, 327188, 336566, 414716, 531131, 593617, 673132, 1062262, 1187234, 1390549, 1554143, 1762543, 1969901, 2124524, 2374468, 2781098, 3108286, 3525086, 3939802, 5562196, 6216572, 7050172, 7879604, 10091489, 16277603, 20182978, 26420431, 32555206, 33488317, 40365956, 52840862, 65110412, 66976634, 105681724, 133953268, 276719251, 309274457, 553438502, 618548914, 1106877004, 1237097828, 5257665769, 10515331538, 21030663076]

約数ペア:

[(1, 21030663076), (2, 10515331538), (4, 5257665769), (17, 1237097828), (19, 1106877004), (34, 618548914), (38, 553438502), (68, 309274457), (76, 276719251), (157, 133953268), (199, 105681724), (314, 66976634), (323, 65110412), (398, 52840862), (521, 40365956), (628, 33488317), (646, 32555206), (796, 26420431), (1042, 20182978), (1292, 16277603), (2084, 10091489), (2669, 7879604), (2983, 7050172), (3383, 6216572), (3781, 5562196), (5338, 3939802), (5966, 3525086), (6766, 3108286), (7562, 2781098), (8857, 2374468), (9899, 2124524), (10676, 1969901), (11932, 1762543), (13532, 1554143), (15124, 1390549), (17714, 1187234), (19798, 1062262), (31243, 673132), (35428, 593617), (39596, 531131), (50711, 414716), (62486, 336566), (64277, 327188), (81797, 257108), (101422, 207358), (103679, 202844), (124972, 168283), (128554, 163594)]