20643696

素因数分解:

$2^4\times 3^2\times {\mathrm{23}}^2\times {\mathrm{271}}^1$

素因数の和:331

約数の個数: 90

約数和(自身を含む): 60617648

約数和(自身を除く): 39973952

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 36, 46, 48, 69, 72, 92, 138, 144, 184, 207, 271, 276, 368, 414, 529, 542, 552, 813, 828, 1058, 1084, 1104, 1587, 1626, 1656, 2116, 2168, 2439, 3174, 3252, 3312, 4232, 4336, 4761, 4878, 6233, 6348, 6504, 8464, 9522, 9756, 12466, 12696, 13008, 18699, 19044, 19512, 24932, 25392, 37398, 38088, 39024, 49864, 56097, 74796, 76176, 99728, 112194, 143359, 149592, 224388, 286718, 299184, 430077, 448776, 573436, 860154, 897552, 1146872, 1290231, 1720308, 2293744, 2580462, 3440616, 5160924, 6881232, 10321848, 20643696]

約数ペア:

[(1, 20643696), (2, 10321848), (3, 6881232), (4, 5160924), (6, 3440616), (8, 2580462), (9, 2293744), (12, 1720308), (16, 1290231), (18, 1146872), (23, 897552), (24, 860154), (36, 573436), (46, 448776), (48, 430077), (69, 299184), (72, 286718), (92, 224388), (138, 149592), (144, 143359), (184, 112194), (207, 99728), (271, 76176), (276, 74796), (368, 56097), (414, 49864), (529, 39024), (542, 38088), (552, 37398), (813, 25392), (828, 24932), (1058, 19512), (1084, 19044), (1104, 18699), (1587, 13008), (1626, 12696), (1656, 12466), (2116, 9756), (2168, 9522), (2439, 8464), (3174, 6504), (3252, 6348), (3312, 6233), (4232, 4878), (4336, 4761)]