21746504

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{991}}^1$

素因数の和:1221

約数の個数: 32

約数和(自身を含む): 44163840

約数和(自身を除く): 22417336

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 211, 422, 844, 991, 1688, 1982, 2743, 3964, 5486, 7928, 10972, 12883, 21944, 25766, 51532, 103064, 209101, 418202, 836404, 1672808, 2718313, 5436626, 10873252, 21746504]

約数ペア:

[(1, 21746504), (2, 10873252), (4, 5436626), (8, 2718313), (13, 1672808), (26, 836404), (52, 418202), (104, 209101), (211, 103064), (422, 51532), (844, 25766), (991, 21944), (1688, 12883), (1982, 10972), (2743, 7928), (3964, 5486)]