18719188796

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{15881}}^1$

素因数の和:16035

約数の個数: 96

約数和(自身を含む): 42263907840

約数和(自身を除く): 23544719044

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 77, 86, 89, 154, 172, 178, 301, 308, 356, 473, 602, 623, 946, 979, 1204, 1246, 1892, 1958, 2492, 3311, 3827, 3916, 6622, 6853, 7654, 13244, 13706, 15308, 15881, 26789, 27412, 31762, 42097, 53578, 63524, 84194, 107156, 111167, 168388, 174691, 222334, 294679, 349382, 444668, 589358, 682883, 698764, 1178716, 1222837, 1365766, 1413409, 2445674, 2731532, 2826818, 4780181, 4891348, 5653636, 7511713, 9560362, 9893863, 15023426, 15547499, 19120724, 19787726, 30046852, 31094998, 39575452, 52581991, 60776587, 62189996, 105163982, 108832493, 121553174, 210327964, 217664986, 243106348, 425436109, 435329972, 668542457, 850872218, 1337084914, 1701744436, 2674169828, 4679797199, 9359594398, 18719188796]

約数ペア:

[(1, 18719188796), (2, 9359594398), (4, 4679797199), (7, 2674169828), (11, 1701744436), (14, 1337084914), (22, 850872218), (28, 668542457), (43, 435329972), (44, 425436109), (77, 243106348), (86, 217664986), (89, 210327964), (154, 121553174), (172, 108832493), (178, 105163982), (301, 62189996), (308, 60776587), (356, 52581991), (473, 39575452), (602, 31094998), (623, 30046852), (946, 19787726), (979, 19120724), (1204, 15547499), (1246, 15023426), (1892, 9893863), (1958, 9560362), (2492, 7511713), (3311, 5653636), (3827, 4891348), (3916, 4780181), (6622, 2826818), (6853, 2731532), (7654, 2445674), (13244, 1413409), (13706, 1365766), (15308, 1222837), (15881, 1178716), (26789, 698764), (27412, 682883), (31762, 589358), (42097, 444668), (53578, 349382), (63524, 294679), (84194, 222334), (107156, 174691), (111167, 168388)]