21613328

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3319}}^1$

素因数の和:3375

約数の個数: 40

約数和(自身を含む): 46931520

約数和(自身を除く): 25318192

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 74, 88, 148, 176, 296, 407, 592, 814, 1628, 3256, 3319, 6512, 6638, 13276, 26552, 36509, 53104, 73018, 122803, 146036, 245606, 292072, 491212, 584144, 982424, 1350833, 1964848, 2701666, 5403332, 10806664, 21613328]

約数ペア:

[(1, 21613328), (2, 10806664), (4, 5403332), (8, 2701666), (11, 1964848), (16, 1350833), (22, 982424), (37, 584144), (44, 491212), (74, 292072), (88, 245606), (148, 146036), (176, 122803), (296, 73018), (407, 53104), (592, 36509), (814, 26552), (1628, 13276), (3256, 6638), (3319, 6512)]