28148481

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 47399040

約数和(自身を除く): 19250559

約数列:

[1, 3, 9, 17, 19, 23, 51, 57, 69, 153, 171, 207, 323, 391, 421, 437, 969, 1173, 1263, 1311, 2907, 3519, 3789, 3933, 7157, 7429, 7999, 9683, 21471, 22287, 23997, 29049, 64413, 66861, 71991, 87147, 135983, 164611, 183977, 407949, 493833, 551931, 1223847, 1481499, 1655793, 3127609, 9382827, 28148481]

約数ペア:

[(1, 28148481), (3, 9382827), (9, 3127609), (17, 1655793), (19, 1481499), (23, 1223847), (51, 551931), (57, 493833), (69, 407949), (153, 183977), (171, 164611), (207, 135983), (323, 87147), (391, 71991), (421, 66861), (437, 64413), (969, 29049), (1173, 23997), (1263, 22287), (1311, 21471), (2907, 9683), (3519, 7999), (3789, 7429), (3933, 7157)]