21875574

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{347}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 53452800

約数和(自身を除く): 31577226

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 79, 114, 133, 158, 237, 266, 347, 399, 474, 553, 694, 798, 1041, 1106, 1501, 1659, 2082, 2429, 3002, 3318, 4503, 4858, 6593, 7287, 9006, 10507, 13186, 14574, 19779, 21014, 27413, 31521, 39558, 46151, 54826, 63042, 82239, 92302, 138453, 164478, 191891, 276906, 383782, 520847, 575673, 1041694, 1151346, 1562541, 3125082, 3645929, 7291858, 10937787, 21875574]

約数ペア:

[(1, 21875574), (2, 10937787), (3, 7291858), (6, 3645929), (7, 3125082), (14, 1562541), (19, 1151346), (21, 1041694), (38, 575673), (42, 520847), (57, 383782), (79, 276906), (114, 191891), (133, 164478), (158, 138453), (237, 92302), (266, 82239), (347, 63042), (399, 54826), (474, 46151), (553, 39558), (694, 31521), (798, 27413), (1041, 21014), (1106, 19779), (1501, 14574), (1659, 13186), (2082, 10507), (2429, 9006), (3002, 7287), (3318, 6593), (4503, 4858)]