18117488

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{977}}^1$

素因数の和:1065

約数の個数: 40

約数和(自身を含む): 37594320

約数和(自身を除く): 19476832

約数列:

[1, 2, 4, 8, 16, 19, 38, 61, 76, 122, 152, 244, 304, 488, 976, 977, 1159, 1954, 2318, 3908, 4636, 7816, 9272, 15632, 18544, 18563, 37126, 59597, 74252, 119194, 148504, 238388, 297008, 476776, 953552, 1132343, 2264686, 4529372, 9058744, 18117488]

約数ペア:

[(1, 18117488), (2, 9058744), (4, 4529372), (8, 2264686), (16, 1132343), (19, 953552), (38, 476776), (61, 297008), (76, 238388), (122, 148504), (152, 119194), (244, 74252), (304, 59597), (488, 37126), (976, 18563), (977, 18544), (1159, 15632), (1954, 9272), (2318, 7816), (3908, 4636)]