21894650

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{1213}}^1$

素因数の和:1263

約数の個数: 36

約数和(自身を含む): 43015662

約数和(自身を除く): 21121012

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 361, 475, 722, 950, 1213, 1805, 2426, 3610, 6065, 9025, 12130, 18050, 23047, 30325, 46094, 60650, 115235, 230470, 437893, 576175, 875786, 1152350, 2189465, 4378930, 10947325, 21894650]

約数ペア:

[(1, 21894650), (2, 10947325), (5, 4378930), (10, 2189465), (19, 1152350), (25, 875786), (38, 576175), (50, 437893), (95, 230470), (190, 115235), (361, 60650), (475, 46094), (722, 30325), (950, 23047), (1213, 18050), (1805, 12130), (2426, 9025), (3610, 6065)]