21175956

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{373}}^1$

素因数の和:485

約数の個数: 72

約数和(自身を含む): 57177120

約数和(自身を除く): 36001164

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 83, 114, 166, 171, 228, 249, 332, 342, 373, 498, 684, 746, 747, 996, 1119, 1492, 1494, 1577, 2238, 2988, 3154, 3357, 4476, 4731, 6308, 6714, 7087, 9462, 13428, 14174, 14193, 18924, 21261, 28348, 28386, 30959, 42522, 56772, 61918, 63783, 85044, 92877, 123836, 127566, 185754, 255132, 278631, 371508, 557262, 588221, 1114524, 1176442, 1764663, 2352884, 3529326, 5293989, 7058652, 10587978, 21175956]

約数ペア:

[(1, 21175956), (2, 10587978), (3, 7058652), (4, 5293989), (6, 3529326), (9, 2352884), (12, 1764663), (18, 1176442), (19, 1114524), (36, 588221), (38, 557262), (57, 371508), (76, 278631), (83, 255132), (114, 185754), (166, 127566), (171, 123836), (228, 92877), (249, 85044), (332, 63783), (342, 61918), (373, 56772), (498, 42522), (684, 30959), (746, 28386), (747, 28348), (996, 21261), (1119, 18924), (1492, 14193), (1494, 14174), (1577, 13428), (2238, 9462), (2988, 7087), (3154, 6714), (3357, 6308), (4476, 4731)]