21782236

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{683}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 46884096

約数和(自身を除く): 25101860

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 67, 68, 119, 134, 238, 268, 469, 476, 683, 938, 1139, 1366, 1876, 2278, 2732, 4556, 4781, 7973, 9562, 11611, 15946, 19124, 23222, 31892, 45761, 46444, 81277, 91522, 162554, 183044, 320327, 325108, 640654, 777937, 1281308, 1555874, 3111748, 5445559, 10891118, 21782236]

約数ペア:

[(1, 21782236), (2, 10891118), (4, 5445559), (7, 3111748), (14, 1555874), (17, 1281308), (28, 777937), (34, 640654), (67, 325108), (68, 320327), (119, 183044), (134, 162554), (238, 91522), (268, 81277), (469, 46444), (476, 45761), (683, 31892), (938, 23222), (1139, 19124), (1366, 15946), (1876, 11611), (2278, 9562), (2732, 7973), (4556, 4781)]