21891342

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:321

約数の個数: 64

約数和(自身を含む): 51321600

約数和(自身を除く): 29430258

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 51, 66, 102, 109, 179, 187, 218, 327, 358, 374, 537, 561, 654, 1074, 1122, 1199, 1853, 1969, 2398, 3043, 3597, 3706, 3938, 5559, 5907, 6086, 7194, 9129, 11118, 11814, 18258, 19511, 20383, 33473, 39022, 40766, 58533, 61149, 66946, 100419, 117066, 122298, 200838, 214621, 331687, 429242, 643863, 663374, 995061, 1287726, 1990122, 3648557, 7297114, 10945671, 21891342]

約数ペア:

[(1, 21891342), (2, 10945671), (3, 7297114), (6, 3648557), (11, 1990122), (17, 1287726), (22, 995061), (33, 663374), (34, 643863), (51, 429242), (66, 331687), (102, 214621), (109, 200838), (179, 122298), (187, 117066), (218, 100419), (327, 66946), (358, 61149), (374, 58533), (537, 40766), (561, 39022), (654, 33473), (1074, 20383), (1122, 19511), (1199, 18258), (1853, 11814), (1969, 11118), (2398, 9129), (3043, 7194), (3597, 6086), (3706, 5907), (3938, 5559)]