20895516

素因数分解:

$2^2\times 3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{599}}^1$

素因数の和:648

約数の個数: 96

約数和(自身を含む): 60480000

約数和(自身を除く): 39584484

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 19, 27, 34, 36, 38, 51, 54, 57, 68, 76, 102, 108, 114, 153, 171, 204, 228, 306, 323, 342, 459, 513, 599, 612, 646, 684, 918, 969, 1026, 1198, 1292, 1797, 1836, 1938, 2052, 2396, 2907, 3594, 3876, 5391, 5814, 7188, 8721, 10183, 10782, 11381, 11628, 16173, 17442, 20366, 21564, 22762, 30549, 32346, 34143, 34884, 40732, 45524, 61098, 64692, 68286, 91647, 102429, 122196, 136572, 183294, 193477, 204858, 274941, 307287, 366588, 386954, 409716, 549882, 580431, 614574, 773908, 1099764, 1160862, 1229148, 1741293, 2321724, 3482586, 5223879, 6965172, 10447758, 20895516]

約数ペア:

[(1, 20895516), (2, 10447758), (3, 6965172), (4, 5223879), (6, 3482586), (9, 2321724), (12, 1741293), (17, 1229148), (18, 1160862), (19, 1099764), (27, 773908), (34, 614574), (36, 580431), (38, 549882), (51, 409716), (54, 386954), (57, 366588), (68, 307287), (76, 274941), (102, 204858), (108, 193477), (114, 183294), (153, 136572), (171, 122196), (204, 102429), (228, 91647), (306, 68286), (323, 64692), (342, 61098), (459, 45524), (513, 40732), (599, 34884), (612, 34143), (646, 32346), (684, 30549), (918, 22762), (969, 21564), (1026, 20366), (1198, 17442), (1292, 16173), (1797, 11628), (1836, 11381), (1938, 10782), (2052, 10183), (2396, 8721), (2907, 7188), (3594, 5814), (3876, 5391)]