21236784

素因数分解:

$2^4\times 3^1\times {\mathrm{61}}^1\times {\mathrm{7253}}^1$

素因数の和:7325

約数の個数: 40

約数和(自身を含む): 55768752

約数和(自身を除く): 34531968

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 61, 122, 183, 244, 366, 488, 732, 976, 1464, 2928, 7253, 14506, 21759, 29012, 43518, 58024, 87036, 116048, 174072, 348144, 442433, 884866, 1327299, 1769732, 2654598, 3539464, 5309196, 7078928, 10618392, 21236784]

約数ペア:

[(1, 21236784), (2, 10618392), (3, 7078928), (4, 5309196), (6, 3539464), (8, 2654598), (12, 1769732), (16, 1327299), (24, 884866), (48, 442433), (61, 348144), (122, 174072), (183, 116048), (244, 87036), (366, 58024), (488, 43518), (732, 29012), (976, 21759), (1464, 14506), (2928, 7253)]