21249654

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{3581}}^1$

素因数の和:3652

約数の個数: 32

約数和(自身を含む): 45391104

約数和(自身を除く): 24141450

約数列:

[1, 2, 3, 6, 23, 43, 46, 69, 86, 129, 138, 258, 989, 1978, 2967, 3581, 5934, 7162, 10743, 21486, 82363, 153983, 164726, 247089, 307966, 461949, 494178, 923898, 3541609, 7083218, 10624827, 21249654]

約数ペア:

[(1, 21249654), (2, 10624827), (3, 7083218), (6, 3541609), (23, 923898), (43, 494178), (46, 461949), (69, 307966), (86, 247089), (129, 164726), (138, 153983), (258, 82363), (989, 21486), (1978, 10743), (2967, 7162), (3581, 5934)]