72749271

素因数分解:

$3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{61}}^2$

素因数の和:165

約数の個数: 48

約数和(自身を含む): 121056000

約数和(自身を除く): 48306729

約数列:

[1, 3, 7, 19, 21, 49, 57, 61, 133, 147, 183, 343, 399, 427, 931, 1029, 1159, 1281, 2793, 2989, 3477, 3721, 6517, 8113, 8967, 11163, 19551, 20923, 24339, 26047, 56791, 62769, 70699, 78141, 170373, 182329, 212097, 397537, 494893, 546987, 1192611, 1276303, 1484679, 3464251, 3828909, 10392753, 24249757, 72749271]

約数ペア:

[(1, 72749271), (3, 24249757), (7, 10392753), (19, 3828909), (21, 3464251), (49, 1484679), (57, 1276303), (61, 1192611), (133, 546987), (147, 494893), (183, 397537), (343, 212097), (399, 182329), (427, 170373), (931, 78141), (1029, 70699), (1159, 62769), (1281, 56791), (2793, 26047), (2989, 24339), (3477, 20923), (3721, 19551), (6517, 11163), (8113, 8967)]