20901618

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{16829}}^1$

素因数の和:16863

約数の個数: 32

約数和(自身を含む): 48470400

約数和(自身を除く): 27568782

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 138, 207, 414, 621, 1242, 16829, 33658, 50487, 100974, 151461, 302922, 387067, 454383, 774134, 908766, 1161201, 2322402, 3483603, 6967206, 10450809, 20901618]

約数ペア:

[(1, 20901618), (2, 10450809), (3, 6967206), (6, 3483603), (9, 2322402), (18, 1161201), (23, 908766), (27, 774134), (46, 454383), (54, 387067), (69, 302922), (138, 151461), (207, 100974), (414, 50487), (621, 33658), (1242, 16829)]