21036705516

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{647}}^1\times {\mathrm{17041}}^1$

素因数の和:17751

約数の個数: 72

約数和(自身を含む): 54266363424

約数和(自身を除く): 33229657908

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 159, 212, 318, 477, 636, 647, 954, 1294, 1908, 1941, 2588, 3882, 5823, 7764, 11646, 17041, 23292, 34082, 34291, 51123, 68164, 68582, 102246, 102873, 137164, 153369, 204492, 205746, 306738, 308619, 411492, 613476, 617238, 903173, 1234476, 1806346, 2709519, 3612692, 5419038, 8128557, 10838076, 11025527, 16257114, 22051054, 32514228, 33076581, 44102108, 66153162, 99229743, 132306324, 198459486, 396918972, 584352931, 1168705862, 1753058793, 2337411724, 3506117586, 5259176379, 7012235172, 10518352758, 21036705516]

約数ペア:

[(1, 21036705516), (2, 10518352758), (3, 7012235172), (4, 5259176379), (6, 3506117586), (9, 2337411724), (12, 1753058793), (18, 1168705862), (36, 584352931), (53, 396918972), (106, 198459486), (159, 132306324), (212, 99229743), (318, 66153162), (477, 44102108), (636, 33076581), (647, 32514228), (954, 22051054), (1294, 16257114), (1908, 11025527), (1941, 10838076), (2588, 8128557), (3882, 5419038), (5823, 3612692), (7764, 2709519), (11646, 1806346), (17041, 1234476), (23292, 903173), (34082, 617238), (34291, 613476), (51123, 411492), (68164, 308619), (68582, 306738), (102246, 205746), (102873, 204492), (137164, 153369)]