72517221

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{8923}}^1$

素因数の和:8982

約数の個数: 32

約数和(自身を含む): 125649920

約数和(自身を除く): 53132699

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2709, 8127, 8923, 26769, 62461, 80307, 187383, 240921, 383689, 562149, 1151067, 1686447, 2685823, 3453201, 8057469, 10359603, 24172407, 72517221]

約数ペア:

[(1, 72517221), (3, 24172407), (7, 10359603), (9, 8057469), (21, 3453201), (27, 2685823), (43, 1686447), (63, 1151067), (129, 562149), (189, 383689), (301, 240921), (387, 187383), (903, 80307), (1161, 62461), (2709, 26769), (8127, 8923)]