21556559721

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1\times {\mathrm{487}}^1$

素因数の和:786

約数の個数: 64

約数和(自身を含む): 31167037440

約数和(自身を除く): 9610477719

約数列:

[1, 3, 23, 59, 69, 83, 131, 177, 249, 393, 487, 1357, 1461, 1909, 3013, 4071, 4897, 5727, 7729, 9039, 10873, 11201, 14691, 23187, 28733, 32619, 33603, 40421, 63797, 86199, 112631, 121263, 177767, 191391, 250079, 337893, 533301, 641507, 660859, 750237, 929683, 1467331, 1924521, 1982577, 2384839, 2789049, 3764023, 4401993, 5295151, 7154517, 11292069, 14754661, 15885453, 44263983, 54851297, 86572529, 121788473, 164553891, 259717587, 312413909, 365365419, 937241727, 7185519907, 21556559721]

約数ペア:

[(1, 21556559721), (3, 7185519907), (23, 937241727), (59, 365365419), (69, 312413909), (83, 259717587), (131, 164553891), (177, 121788473), (249, 86572529), (393, 54851297), (487, 44263983), (1357, 15885453), (1461, 14754661), (1909, 11292069), (3013, 7154517), (4071, 5295151), (4897, 4401993), (5727, 3764023), (7729, 2789049), (9039, 2384839), (10873, 1982577), (11201, 1924521), (14691, 1467331), (23187, 929683), (28733, 750237), (32619, 660859), (33603, 641507), (40421, 533301), (63797, 337893), (86199, 250079), (112631, 191391), (121263, 177767)]