21803375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:284

約数の個数: 32

約数和(自身を含む): 30169152

約数和(自身を除く): 8365777

約数列:

[1, 5, 11, 25, 55, 101, 125, 157, 275, 505, 785, 1111, 1375, 1727, 2525, 3925, 5555, 8635, 12625, 15857, 19625, 27775, 43175, 79285, 138875, 174427, 215875, 396425, 872135, 1982125, 4360675, 21803375]

約数ペア:

[(1, 21803375), (5, 4360675), (11, 1982125), (25, 872135), (55, 396425), (101, 215875), (125, 174427), (157, 138875), (275, 79285), (505, 43175), (785, 27775), (1111, 19625), (1375, 15857), (1727, 12625), (2525, 8635), (3925, 5555)]