19989828

素因数分解:

$2^2\times 3^4\times {\mathrm{103}}^1\times {\mathrm{599}}^1$

素因数の和:718

約数の個数: 60

約数和(自身を含む): 52852800

約数和(自身を除く): 32862972

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 103, 108, 162, 206, 309, 324, 412, 599, 618, 927, 1198, 1236, 1797, 1854, 2396, 2781, 3594, 3708, 5391, 5562, 7188, 8343, 10782, 11124, 16173, 16686, 21564, 32346, 33372, 48519, 61697, 64692, 97038, 123394, 185091, 194076, 246788, 370182, 555273, 740364, 1110546, 1665819, 2221092, 3331638, 4997457, 6663276, 9994914, 19989828]

約数ペア:

[(1, 19989828), (2, 9994914), (3, 6663276), (4, 4997457), (6, 3331638), (9, 2221092), (12, 1665819), (18, 1110546), (27, 740364), (36, 555273), (54, 370182), (81, 246788), (103, 194076), (108, 185091), (162, 123394), (206, 97038), (309, 64692), (324, 61697), (412, 48519), (599, 33372), (618, 32346), (927, 21564), (1198, 16686), (1236, 16173), (1797, 11124), (1854, 10782), (2396, 8343), (2781, 7188), (3594, 5562), (3708, 5391)]