21251310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1621}}^1$

素因数の和:1673

約数の個数: 64

約数和(自身を含む): 56056320

約数和(自身を除く): 34805010

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 23, 30, 38, 46, 57, 69, 95, 114, 115, 138, 190, 230, 285, 345, 437, 570, 690, 874, 1311, 1621, 2185, 2622, 3242, 4370, 4863, 6555, 8105, 9726, 13110, 16210, 24315, 30799, 37283, 48630, 61598, 74566, 92397, 111849, 153995, 184794, 186415, 223698, 307990, 372830, 461985, 559245, 708377, 923970, 1118490, 1416754, 2125131, 3541885, 4250262, 7083770, 10625655, 21251310]

約数ペア:

[(1, 21251310), (2, 10625655), (3, 7083770), (5, 4250262), (6, 3541885), (10, 2125131), (15, 1416754), (19, 1118490), (23, 923970), (30, 708377), (38, 559245), (46, 461985), (57, 372830), (69, 307990), (95, 223698), (114, 186415), (115, 184794), (138, 153995), (190, 111849), (230, 92397), (285, 74566), (345, 61598), (437, 48630), (570, 37283), (690, 30799), (874, 24315), (1311, 16210), (1621, 13110), (2185, 9726), (2622, 8105), (3242, 6555), (4370, 4863)]