21578928644

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{211}}^1\times {\mathrm{1471}}^1$

素因数の和:1897

約数の個数: 96

約数和(自身を含む): 46974369792

約数和(自身を除く): 25395441148

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 191, 211, 364, 382, 422, 764, 844, 1337, 1471, 1477, 2483, 2674, 2743, 2942, 2954, 4966, 5348, 5486, 5884, 5908, 9932, 10297, 10972, 17381, 19123, 19201, 20594, 34762, 38246, 38402, 40301, 41188, 69524, 76492, 76804, 80602, 133861, 161204, 267722, 280961, 282107, 310381, 523913, 535444, 561922, 564214, 620762, 1047826, 1123844, 1128428, 1241524, 1966727, 2095652, 2172667, 3652493, 3667391, 3933454, 4034953, 4345334, 7304986, 7334782, 7866908, 8069906, 8690668, 14609972, 14669564, 16139812, 25567451, 28244671, 51134902, 56489342, 59282771, 102269804, 112978684, 118565542, 237131084, 414979397, 770676023, 829958794, 1541352046, 1659917588, 3082704092, 5394732161, 10789464322, 21578928644]

約数ペア:

[(1, 21578928644), (2, 10789464322), (4, 5394732161), (7, 3082704092), (13, 1659917588), (14, 1541352046), (26, 829958794), (28, 770676023), (52, 414979397), (91, 237131084), (182, 118565542), (191, 112978684), (211, 102269804), (364, 59282771), (382, 56489342), (422, 51134902), (764, 28244671), (844, 25567451), (1337, 16139812), (1471, 14669564), (1477, 14609972), (2483, 8690668), (2674, 8069906), (2743, 7866908), (2942, 7334782), (2954, 7304986), (4966, 4345334), (5348, 4034953), (5486, 3933454), (5884, 3667391), (5908, 3652493), (9932, 2172667), (10297, 2095652), (10972, 1966727), (17381, 1241524), (19123, 1128428), (19201, 1123844), (20594, 1047826), (34762, 620762), (38246, 564214), (38402, 561922), (40301, 535444), (41188, 523913), (69524, 310381), (76492, 282107), (76804, 280961), (80602, 267722), (133861, 161204)]