21983962

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 45158400

約数和(自身を除く): 23174438

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 79, 91, 139, 143, 154, 158, 182, 278, 286, 553, 869, 973, 1001, 1027, 1106, 1529, 1738, 1807, 1946, 2002, 2054, 3058, 3614, 6083, 7189, 10703, 10981, 11297, 12166, 12649, 14378, 19877, 21406, 21962, 22594, 25298, 39754, 76867, 79079, 120791, 139139, 142753, 153734, 158158, 241582, 278278, 285506, 845537, 999271, 1570283, 1691074, 1998542, 3140566, 10991981, 21983962]

約数ペア:

[(1, 21983962), (2, 10991981), (7, 3140566), (11, 1998542), (13, 1691074), (14, 1570283), (22, 999271), (26, 845537), (77, 285506), (79, 278278), (91, 241582), (139, 158158), (143, 153734), (154, 142753), (158, 139139), (182, 120791), (278, 79079), (286, 76867), (553, 39754), (869, 25298), (973, 22594), (1001, 21962), (1027, 21406), (1106, 19877), (1529, 14378), (1738, 12649), (1807, 12166), (1946, 11297), (2002, 10981), (2054, 10703), (3058, 7189), (3614, 6083)]