21000679024

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1063}}^1\times {\mathrm{4999}}^1$

素因数の和:6102

約数の個数: 80

約数和(自身を含む): 46177600000

約数和(自身を除く): 25176920976

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1063, 1976, 2126, 3952, 4252, 4999, 8504, 9998, 13819, 17008, 19996, 20197, 27638, 39992, 40394, 55276, 64987, 79984, 80788, 94981, 110552, 129974, 161576, 189962, 221104, 259948, 262561, 323152, 379924, 519896, 525122, 759848, 1039792, 1050244, 1234753, 1519696, 2100488, 2469506, 4200976, 4939012, 5313937, 9878024, 10627874, 19756048, 21255748, 42511496, 69081181, 85022992, 100964803, 138162362, 201929606, 276324724, 403859212, 552649448, 807718424, 1105298896, 1312542439, 1615436848, 2625084878, 5250169756, 10500339512, 21000679024]

約数ペア:

[(1, 21000679024), (2, 10500339512), (4, 5250169756), (8, 2625084878), (13, 1615436848), (16, 1312542439), (19, 1105298896), (26, 807718424), (38, 552649448), (52, 403859212), (76, 276324724), (104, 201929606), (152, 138162362), (208, 100964803), (247, 85022992), (304, 69081181), (494, 42511496), (988, 21255748), (1063, 19756048), (1976, 10627874), (2126, 9878024), (3952, 5313937), (4252, 4939012), (4999, 4200976), (8504, 2469506), (9998, 2100488), (13819, 1519696), (17008, 1234753), (19996, 1050244), (20197, 1039792), (27638, 759848), (39992, 525122), (40394, 519896), (55276, 379924), (64987, 323152), (79984, 262561), (80788, 259948), (94981, 221104), (110552, 189962), (129974, 161576)]