21071285964

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{620693}}^1$

素因数の和:620767

約数の個数: 72

約数和(自身を含む): 56935019232

約数和(自身を除く): 35863733268

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 41, 46, 69, 82, 92, 123, 138, 164, 207, 246, 276, 369, 414, 492, 738, 828, 943, 1476, 1886, 2829, 3772, 5658, 8487, 11316, 16974, 33948, 620693, 1241386, 1862079, 2482772, 3724158, 5586237, 7448316, 11172474, 14275939, 22344948, 25448413, 28551878, 42827817, 50896826, 57103756, 76345239, 85655634, 101793652, 128483451, 152690478, 171311268, 229035717, 256966902, 305380956, 458071434, 513933804, 585313499, 916142868, 1170626998, 1755940497, 2341253996, 3511880994, 5267821491, 7023761988, 10535642982, 21071285964]

約数ペア:

[(1, 21071285964), (2, 10535642982), (3, 7023761988), (4, 5267821491), (6, 3511880994), (9, 2341253996), (12, 1755940497), (18, 1170626998), (23, 916142868), (36, 585313499), (41, 513933804), (46, 458071434), (69, 305380956), (82, 256966902), (92, 229035717), (123, 171311268), (138, 152690478), (164, 128483451), (207, 101793652), (246, 85655634), (276, 76345239), (369, 57103756), (414, 50896826), (492, 42827817), (738, 28551878), (828, 25448413), (943, 22344948), (1476, 14275939), (1886, 11172474), (2829, 7448316), (3772, 5586237), (5658, 3724158), (8487, 2482772), (11316, 1862079), (16974, 1241386), (33948, 620693)]