20198984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{1163}}^1$

素因数の和:1349

約数の個数: 32

約数和(自身を含む): 41065920

約数和(自身を除く): 20866936

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 167, 334, 668, 1163, 1336, 2171, 2326, 4342, 4652, 8684, 9304, 15119, 17368, 30238, 60476, 120952, 194221, 388442, 776884, 1553768, 2524873, 5049746, 10099492, 20198984]

約数ペア:

[(1, 20198984), (2, 10099492), (4, 5049746), (8, 2524873), (13, 1553768), (26, 776884), (52, 388442), (104, 194221), (167, 120952), (334, 60476), (668, 30238), (1163, 17368), (1336, 15119), (2171, 9304), (2326, 8684), (4342, 4652)]