21958850

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^2\times {\mathrm{457}}^1$

素因数の和:531

約数の個数: 36

約数和(自身を含む): 42295842

約数和(自身を除く): 20336992

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 457, 775, 914, 961, 1550, 1922, 2285, 4570, 4805, 9610, 11425, 14167, 22850, 24025, 28334, 48050, 70835, 141670, 354175, 439177, 708350, 878354, 2195885, 4391770, 10979425, 21958850]

約数ペア:

[(1, 21958850), (2, 10979425), (5, 4391770), (10, 2195885), (25, 878354), (31, 708350), (50, 439177), (62, 354175), (155, 141670), (310, 70835), (457, 48050), (775, 28334), (914, 24025), (961, 22850), (1550, 14167), (1922, 11425), (2285, 9610), (4570, 4805)]