217451556

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{263}}^1$

素因数の和:490

約数の個数: 144

約数和(自身を含む): 671134464

約数和(自身を除く): 453682908

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 51, 63, 68, 84, 102, 119, 126, 153, 193, 204, 238, 252, 263, 306, 357, 386, 476, 526, 579, 612, 714, 772, 789, 1052, 1071, 1158, 1351, 1428, 1578, 1737, 1841, 2142, 2316, 2367, 2702, 3156, 3281, 3474, 3682, 4053, 4284, 4471, 4734, 5404, 5523, 6562, 6948, 7364, 8106, 8942, 9468, 9843, 11046, 12159, 13124, 13413, 16212, 16569, 17884, 19686, 22092, 22967, 24318, 26826, 29529, 31297, 33138, 39372, 40239, 45934, 48636, 50759, 53652, 59058, 62594, 66276, 68901, 80478, 91868, 93891, 101518, 118116, 125188, 137802, 152277, 160956, 187782, 203036, 206703, 275604, 281673, 304554, 355313, 375564, 413406, 456831, 563346, 609108, 710626, 826812, 862903, 913662, 1065939, 1126692, 1421252, 1725806, 1827324, 2131878, 2588709, 3197817, 3451612, 4263756, 5177418, 6040321, 6395634, 7766127, 10354836, 12080642, 12791268, 15532254, 18120963, 24161284, 31064508, 36241926, 54362889, 72483852, 108725778, 217451556]

約数ペア:

[(1, 217451556), (2, 108725778), (3, 72483852), (4, 54362889), (6, 36241926), (7, 31064508), (9, 24161284), (12, 18120963), (14, 15532254), (17, 12791268), (18, 12080642), (21, 10354836), (28, 7766127), (34, 6395634), (36, 6040321), (42, 5177418), (51, 4263756), (63, 3451612), (68, 3197817), (84, 2588709), (102, 2131878), (119, 1827324), (126, 1725806), (153, 1421252), (193, 1126692), (204, 1065939), (238, 913662), (252, 862903), (263, 826812), (306, 710626), (357, 609108), (386, 563346), (476, 456831), (526, 413406), (579, 375564), (612, 355313), (714, 304554), (772, 281673), (789, 275604), (1052, 206703), (1071, 203036), (1158, 187782), (1351, 160956), (1428, 152277), (1578, 137802), (1737, 125188), (1841, 118116), (2142, 101518), (2316, 93891), (2367, 91868), (2702, 80478), (3156, 68901), (3281, 66276), (3474, 62594), (3682, 59058), (4053, 53652), (4284, 50759), (4471, 48636), (4734, 45934), (5404, 40239), (5523, 39372), (6562, 33138), (6948, 31297), (7364, 29529), (8106, 26826), (8942, 24318), (9468, 22967), (9843, 22092), (11046, 19686), (12159, 17884), (13124, 16569), (13413, 16212)]