221021388

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{907}}^1\times {\mathrm{967}}^1$

素因数の和:1891

約数の個数: 72

約数和(自身を含む): 639871232

約数和(自身を除く): 418849844

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 907, 967, 1814, 1934, 2721, 2901, 3628, 3868, 5442, 5802, 6349, 6769, 8163, 8703, 10884, 11604, 12698, 13538, 16326, 17406, 19047, 20307, 25396, 27076, 32652, 34812, 38094, 40614, 57141, 60921, 76188, 81228, 114282, 121842, 228564, 243684, 877069, 1754138, 2631207, 3508276, 5262414, 6139483, 7893621, 10524828, 12278966, 15787242, 18418449, 24557932, 31574484, 36836898, 55255347, 73673796, 110510694, 221021388]

約数ペア:

[(1, 221021388), (2, 110510694), (3, 73673796), (4, 55255347), (6, 36836898), (7, 31574484), (9, 24557932), (12, 18418449), (14, 15787242), (18, 12278966), (21, 10524828), (28, 7893621), (36, 6139483), (42, 5262414), (63, 3508276), (84, 2631207), (126, 1754138), (252, 877069), (907, 243684), (967, 228564), (1814, 121842), (1934, 114282), (2721, 81228), (2901, 76188), (3628, 60921), (3868, 57141), (5442, 40614), (5802, 38094), (6349, 34812), (6769, 32652), (8163, 27076), (8703, 25396), (10884, 20307), (11604, 19047), (12698, 17406), (13538, 16326)]