20788178

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{241}}^1$

素因数の和:362

約数の個数: 32

約数和(自身を含む): 34499520

約数和(自身を除く): 13711342

約数列:

[1, 2, 17, 34, 43, 59, 86, 118, 241, 482, 731, 1003, 1462, 2006, 2537, 4097, 5074, 8194, 10363, 14219, 20726, 28438, 43129, 86258, 176171, 241723, 352342, 483446, 611417, 1222834, 10394089, 20788178]

約数ペア:

[(1, 20788178), (2, 10394089), (17, 1222834), (34, 611417), (43, 483446), (59, 352342), (86, 241723), (118, 176171), (241, 86258), (482, 43129), (731, 28438), (1003, 20726), (1462, 14219), (2006, 10363), (2537, 8194), (4097, 5074)]