21381516

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:280

約数の個数: 96

約数和(自身を含む): 60697280

約数和(自身を除く): 39315764

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 97, 108, 117, 156, 157, 194, 234, 291, 314, 351, 388, 468, 471, 582, 628, 702, 873, 942, 1164, 1261, 1404, 1413, 1746, 1884, 2041, 2522, 2619, 2826, 3492, 3783, 4082, 4239, 5044, 5238, 5652, 6123, 7566, 8164, 8478, 10476, 11349, 12246, 15132, 15229, 16956, 18369, 22698, 24492, 30458, 34047, 36738, 45396, 45687, 55107, 60916, 68094, 73476, 91374, 110214, 136188, 137061, 182748, 197977, 220428, 274122, 395954, 411183, 548244, 593931, 791908, 822366, 1187862, 1644732, 1781793, 2375724, 3563586, 5345379, 7127172, 10690758, 21381516]

約数ペア:

[(1, 21381516), (2, 10690758), (3, 7127172), (4, 5345379), (6, 3563586), (9, 2375724), (12, 1781793), (13, 1644732), (18, 1187862), (26, 822366), (27, 791908), (36, 593931), (39, 548244), (52, 411183), (54, 395954), (78, 274122), (97, 220428), (108, 197977), (117, 182748), (156, 137061), (157, 136188), (194, 110214), (234, 91374), (291, 73476), (314, 68094), (351, 60916), (388, 55107), (468, 45687), (471, 45396), (582, 36738), (628, 34047), (702, 30458), (873, 24492), (942, 22698), (1164, 18369), (1261, 16956), (1404, 15229), (1413, 15132), (1746, 12246), (1884, 11349), (2041, 10476), (2522, 8478), (2619, 8164), (2826, 7566), (3492, 6123), (3783, 5652), (4082, 5238), (4239, 5044)]