21652016

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3461}}^1$

素因数の和:3509

約数の個数: 40

約数和(自身を含む): 46363104

約数和(自身を除く): 24711088

約数列:

[1, 2, 4, 8, 16, 17, 23, 34, 46, 68, 92, 136, 184, 272, 368, 391, 782, 1564, 3128, 3461, 6256, 6922, 13844, 27688, 55376, 58837, 79603, 117674, 159206, 235348, 318412, 470696, 636824, 941392, 1273648, 1353251, 2706502, 5413004, 10826008, 21652016]

約数ペア:

[(1, 21652016), (2, 10826008), (4, 5413004), (8, 2706502), (16, 1353251), (17, 1273648), (23, 941392), (34, 636824), (46, 470696), (68, 318412), (92, 235348), (136, 159206), (184, 117674), (272, 79603), (368, 58837), (391, 55376), (782, 27688), (1564, 13844), (3128, 6922), (3461, 6256)]