21504276

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:389

約数の個数: 72

約数和(自身を含む): 57876000

約数和(自身を除く): 36371724

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 149, 171, 211, 228, 298, 342, 422, 447, 596, 633, 684, 844, 894, 1266, 1341, 1788, 1899, 2532, 2682, 2831, 3798, 4009, 5364, 5662, 7596, 8018, 8493, 11324, 12027, 16036, 16986, 24054, 25479, 31439, 33972, 36081, 48108, 50958, 62878, 72162, 94317, 101916, 125756, 144324, 188634, 282951, 377268, 565902, 597341, 1131804, 1194682, 1792023, 2389364, 3584046, 5376069, 7168092, 10752138, 21504276]

約数ペア:

[(1, 21504276), (2, 10752138), (3, 7168092), (4, 5376069), (6, 3584046), (9, 2389364), (12, 1792023), (18, 1194682), (19, 1131804), (36, 597341), (38, 565902), (57, 377268), (76, 282951), (114, 188634), (149, 144324), (171, 125756), (211, 101916), (228, 94317), (298, 72162), (342, 62878), (422, 50958), (447, 48108), (596, 36081), (633, 33972), (684, 31439), (844, 25479), (894, 24054), (1266, 16986), (1341, 16036), (1788, 12027), (1899, 11324), (2532, 8493), (2682, 8018), (2831, 7596), (3798, 5662), (4009, 5364)]