21793486

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{421}}^1$

素因数の和:628

約数の個数: 32

約数和(自身を含む): 38709216

約数和(自身を除く): 16915730

約数列:

[1, 2, 11, 13, 22, 26, 143, 181, 286, 362, 421, 842, 1991, 2353, 3982, 4631, 4706, 5473, 9262, 10946, 25883, 51766, 60203, 76201, 120406, 152402, 838211, 990613, 1676422, 1981226, 10896743, 21793486]

約数ペア:

[(1, 21793486), (2, 10896743), (11, 1981226), (13, 1676422), (22, 990613), (26, 838211), (143, 152402), (181, 120406), (286, 76201), (362, 60203), (421, 51766), (842, 25883), (1991, 10946), (2353, 9262), (3982, 5473), (4631, 4706)]