28279581

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:146

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 18998499

約数列:

[1, 3, 11, 19, 23, 33, 37, 53, 57, 69, 111, 159, 209, 253, 407, 437, 583, 627, 703, 759, 851, 1007, 1219, 1221, 1311, 1749, 1961, 2109, 2553, 3021, 3657, 4807, 5883, 7733, 9361, 11077, 13409, 14421, 16169, 21571, 23161, 23199, 28083, 33231, 37259, 40227, 45103, 48507, 64713, 69483, 111777, 135309, 177859, 254771, 409849, 496133, 533577, 764313, 856957, 1229547, 1488399, 2570871, 9426527, 28279581]

約数ペア:

[(1, 28279581), (3, 9426527), (11, 2570871), (19, 1488399), (23, 1229547), (33, 856957), (37, 764313), (53, 533577), (57, 496133), (69, 409849), (111, 254771), (159, 177859), (209, 135309), (253, 111777), (407, 69483), (437, 64713), (583, 48507), (627, 45103), (703, 40227), (759, 37259), (851, 33231), (1007, 28083), (1219, 23199), (1221, 23161), (1311, 21571), (1749, 16169), (1961, 14421), (2109, 13409), (2553, 11077), (3021, 9361), (3657, 7733), (4807, 5883)]