21716996

素因数分解:

$2^2\times 7^2\times {\mathrm{179}}^1\times {\mathrm{619}}^1$

素因数の和:816

約数の個数: 36

約数和(自身を含む): 44528400

約数和(自身を除く): 22811404

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 179, 196, 358, 619, 716, 1238, 1253, 2476, 2506, 4333, 5012, 8666, 8771, 17332, 17542, 30331, 35084, 60662, 110801, 121324, 221602, 443204, 775607, 1551214, 3102428, 5429249, 10858498, 21716996]

約数ペア:

[(1, 21716996), (2, 10858498), (4, 5429249), (7, 3102428), (14, 1551214), (28, 775607), (49, 443204), (98, 221602), (179, 121324), (196, 110801), (358, 60662), (619, 35084), (716, 30331), (1238, 17542), (1253, 17332), (2476, 8771), (2506, 8666), (4333, 5012)]