21453850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2053}}^1$

素因数の和:2095

約数の個数: 48

約数和(自身を含む): 45845280

約数和(自身を除く): 24391430

約数列:

[1, 2, 5, 10, 11, 19, 22, 25, 38, 50, 55, 95, 110, 190, 209, 275, 418, 475, 550, 950, 1045, 2053, 2090, 4106, 5225, 10265, 10450, 20530, 22583, 39007, 45166, 51325, 78014, 102650, 112915, 195035, 225830, 390070, 429077, 564575, 858154, 975175, 1129150, 1950350, 2145385, 4290770, 10726925, 21453850]

約数ペア:

[(1, 21453850), (2, 10726925), (5, 4290770), (10, 2145385), (11, 1950350), (19, 1129150), (22, 975175), (25, 858154), (38, 564575), (50, 429077), (55, 390070), (95, 225830), (110, 195035), (190, 112915), (209, 102650), (275, 78014), (418, 51325), (475, 45166), (550, 39007), (950, 22583), (1045, 20530), (2053, 10450), (2090, 10265), (4106, 5225)]