21724508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 42641760

約数和(自身を除く): 20917252

約数列:

[1, 2, 4, 13, 26, 52, 59, 73, 97, 118, 146, 194, 236, 292, 388, 767, 949, 1261, 1534, 1898, 2522, 3068, 3796, 4307, 5044, 5723, 7081, 8614, 11446, 14162, 17228, 22892, 28324, 55991, 74399, 92053, 111982, 148798, 184106, 223964, 297596, 368212, 417779, 835558, 1671116, 5431127, 10862254, 21724508]

約数ペア:

[(1, 21724508), (2, 10862254), (4, 5431127), (13, 1671116), (26, 835558), (52, 417779), (59, 368212), (73, 297596), (97, 223964), (118, 184106), (146, 148798), (194, 111982), (236, 92053), (292, 74399), (388, 55991), (767, 28324), (949, 22892), (1261, 17228), (1534, 14162), (1898, 11446), (2522, 8614), (3068, 7081), (3796, 5723), (4307, 5044)]