28219641

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 40857600

約数和(自身を除く): 12637959

約数列:

[1, 3, 31, 37, 59, 93, 111, 139, 177, 417, 1147, 1829, 2183, 3441, 4309, 5143, 5487, 6549, 8201, 12927, 15429, 24603, 67673, 159433, 203019, 254231, 303437, 478299, 762693, 910311, 9406547, 28219641]

約数ペア:

[(1, 28219641), (3, 9406547), (31, 910311), (37, 762693), (59, 478299), (93, 303437), (111, 254231), (139, 203019), (177, 159433), (417, 67673), (1147, 24603), (1829, 15429), (2183, 12927), (3441, 8201), (4309, 6549), (5143, 5487)]