81238773

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:298

約数の個数: 64

約数和(自身を含む): 142571520

約数和(自身を除く): 61332747

約数列:

[1, 3, 7, 11, 21, 29, 33, 67, 77, 87, 181, 201, 203, 231, 319, 469, 543, 609, 737, 957, 1267, 1407, 1943, 1991, 2211, 2233, 3801, 5159, 5249, 5829, 5973, 6699, 12127, 13601, 13937, 15477, 15747, 21373, 36381, 36743, 40803, 41811, 57739, 64119, 84889, 110229, 133397, 149611, 173217, 254667, 351683, 400191, 404173, 448833, 933779, 1055049, 1212519, 2461781, 2801337, 3868513, 7385343, 11605539, 27079591, 81238773]

約数ペア:

[(1, 81238773), (3, 27079591), (7, 11605539), (11, 7385343), (21, 3868513), (29, 2801337), (33, 2461781), (67, 1212519), (77, 1055049), (87, 933779), (181, 448833), (201, 404173), (203, 400191), (231, 351683), (319, 254667), (469, 173217), (543, 149611), (609, 133397), (737, 110229), (957, 84889), (1267, 64119), (1407, 57739), (1943, 41811), (1991, 40803), (2211, 36743), (2233, 36381), (3801, 21373), (5159, 15747), (5249, 15477), (5829, 13937), (5973, 13601), (6699, 12127)]