19736984

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{509}}^1$

素因数の和:683

約数の個数: 32

約数和(自身を含む): 38372400

約数和(自身を除く): 18635416

約数列:

[1, 2, 4, 8, 37, 74, 131, 148, 262, 296, 509, 524, 1018, 1048, 2036, 4072, 4847, 9694, 18833, 19388, 37666, 38776, 66679, 75332, 133358, 150664, 266716, 533432, 2467123, 4934246, 9868492, 19736984]

約数ペア:

[(1, 19736984), (2, 9868492), (4, 4934246), (8, 2467123), (37, 533432), (74, 266716), (131, 150664), (148, 133358), (262, 75332), (296, 66679), (509, 38776), (524, 37666), (1018, 19388), (1048, 18833), (2036, 9694), (4072, 4847)]