21813704

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{509}}^1$

素因数の和:1013

約数の個数: 32

約数和(自身を含む): 44798400

約数和(自身を除く): 22984696

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 487, 509, 974, 1018, 1948, 2036, 3896, 4072, 5357, 5599, 10714, 11198, 21428, 22396, 42856, 44792, 247883, 495766, 991532, 1983064, 2726713, 5453426, 10906852, 21813704]

約数ペア:

[(1, 21813704), (2, 10906852), (4, 5453426), (8, 2726713), (11, 1983064), (22, 991532), (44, 495766), (88, 247883), (487, 44792), (509, 42856), (974, 22396), (1018, 21428), (1948, 11198), (2036, 10714), (3896, 5599), (4072, 5357)]