21913424

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{769}}^1$

素因数の和:927

約数の個数: 40

約数和(自身を含む): 46116840

約数和(自身を除く): 24203416

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 137, 208, 274, 548, 769, 1096, 1538, 1781, 2192, 3076, 3562, 6152, 7124, 9997, 12304, 14248, 19994, 28496, 39988, 79976, 105353, 159952, 210706, 421412, 842824, 1369589, 1685648, 2739178, 5478356, 10956712, 21913424]

約数ペア:

[(1, 21913424), (2, 10956712), (4, 5478356), (8, 2739178), (13, 1685648), (16, 1369589), (26, 842824), (52, 421412), (104, 210706), (137, 159952), (208, 105353), (274, 79976), (548, 39988), (769, 28496), (1096, 19994), (1538, 14248), (1781, 12304), (2192, 9997), (3076, 7124), (3562, 6152)]