18972992

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:247

約数の個数: 56

約数和(自身を含む): 39697152

約数和(自身を除く): 20724160

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 73, 124, 131, 146, 248, 262, 292, 496, 524, 584, 992, 1048, 1168, 1984, 2096, 2263, 2336, 4061, 4192, 4526, 4672, 8122, 8384, 9052, 9563, 16244, 18104, 19126, 32488, 36208, 38252, 64976, 72416, 76504, 129952, 144832, 153008, 259904, 296453, 306016, 592906, 612032, 1185812, 2371624, 4743248, 9486496, 18972992]

約数ペア:

[(1, 18972992), (2, 9486496), (4, 4743248), (8, 2371624), (16, 1185812), (31, 612032), (32, 592906), (62, 306016), (64, 296453), (73, 259904), (124, 153008), (131, 144832), (146, 129952), (248, 76504), (262, 72416), (292, 64976), (496, 38252), (524, 36208), (584, 32488), (992, 19126), (1048, 18104), (1168, 16244), (1984, 9563), (2096, 9052), (2263, 8384), (2336, 8122), (4061, 4672), (4192, 4526)]