21232861

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:169

約数の個数: 32

約数和(自身を含む): 25804800

約数和(自身を除く): 4571939

約数列:

[1, 13, 19, 31, 47, 59, 247, 403, 589, 611, 767, 893, 1121, 1457, 1829, 2773, 7657, 11609, 14573, 18941, 23777, 27683, 34751, 36049, 52687, 85963, 359879, 451763, 684931, 1117519, 1633297, 21232861]

約数ペア:

[(1, 21232861), (13, 1633297), (19, 1117519), (31, 684931), (47, 451763), (59, 359879), (247, 85963), (403, 52687), (589, 36049), (611, 34751), (767, 27683), (893, 23777), (1121, 18941), (1457, 14573), (1829, 11609), (2773, 7657)]