21071496

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{647}}^1$

素因数の和:738

約数の個数: 64

約数和(自身を含む): 55987200

約数和(自身を除く): 34915704

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 46, 59, 69, 92, 118, 138, 177, 184, 236, 276, 354, 472, 552, 647, 708, 1294, 1357, 1416, 1941, 2588, 2714, 3882, 4071, 5176, 5428, 7764, 8142, 10856, 14881, 15528, 16284, 29762, 32568, 38173, 44643, 59524, 76346, 89286, 114519, 119048, 152692, 178572, 229038, 305384, 357144, 458076, 877979, 916152, 1755958, 2633937, 3511916, 5267874, 7023832, 10535748, 21071496]

約数ペア:

[(1, 21071496), (2, 10535748), (3, 7023832), (4, 5267874), (6, 3511916), (8, 2633937), (12, 1755958), (23, 916152), (24, 877979), (46, 458076), (59, 357144), (69, 305384), (92, 229038), (118, 178572), (138, 152692), (177, 119048), (184, 114519), (236, 89286), (276, 76346), (354, 59524), (472, 44643), (552, 38173), (647, 32568), (708, 29762), (1294, 16284), (1357, 15528), (1416, 14881), (1941, 10856), (2588, 8142), (2714, 7764), (3882, 5428), (4071, 5176)]