28208026

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:355

約数の個数: 48

約数和(自身を含む): 54369792

約数和(自身を除く): 26161766

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 137, 154, 191, 274, 382, 539, 959, 1078, 1337, 1507, 1918, 2101, 2674, 3014, 4202, 6713, 9359, 10549, 13426, 14707, 18718, 21098, 26167, 29414, 52334, 73843, 102949, 147686, 183169, 205898, 287837, 366338, 575674, 1282183, 2014859, 2564366, 4029718, 14104013, 28208026]

約数ペア:

[(1, 28208026), (2, 14104013), (7, 4029718), (11, 2564366), (14, 2014859), (22, 1282183), (49, 575674), (77, 366338), (98, 287837), (137, 205898), (154, 183169), (191, 147686), (274, 102949), (382, 73843), (539, 52334), (959, 29414), (1078, 26167), (1337, 21098), (1507, 18718), (1918, 14707), (2101, 13426), (2674, 10549), (3014, 9359), (4202, 6713)]