21259452

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{197}}^1$

素因数の和:267

約数の個数: 72

約数和(自身を含む): 55184976

約数和(自身を除く): 33925524

約数列:

[1, 2, 3, 4, 6, 12, 17, 23, 34, 46, 51, 68, 69, 92, 102, 138, 197, 204, 276, 391, 394, 529, 591, 782, 788, 1058, 1173, 1182, 1564, 1587, 2116, 2346, 2364, 3174, 3349, 4531, 4692, 6348, 6698, 8993, 9062, 10047, 13396, 13593, 17986, 18124, 20094, 26979, 27186, 35972, 40188, 53958, 54372, 77027, 104213, 107916, 154054, 208426, 231081, 308108, 312639, 416852, 462162, 625278, 924324, 1250556, 1771621, 3543242, 5314863, 7086484, 10629726, 21259452]

約数ペア:

[(1, 21259452), (2, 10629726), (3, 7086484), (4, 5314863), (6, 3543242), (12, 1771621), (17, 1250556), (23, 924324), (34, 625278), (46, 462162), (51, 416852), (68, 312639), (69, 308108), (92, 231081), (102, 208426), (138, 154054), (197, 107916), (204, 104213), (276, 77027), (391, 54372), (394, 53958), (529, 40188), (591, 35972), (782, 27186), (788, 26979), (1058, 20094), (1173, 18124), (1182, 17986), (1564, 13593), (1587, 13396), (2116, 10047), (2346, 9062), (2364, 8993), (3174, 6698), (3349, 6348), (4531, 4692)]