21829940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1481}}^1$

素因数の和:1568

約数の個数: 48

約数和(自身を含む): 50791104

約数和(自身を除く): 28961164

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 134, 220, 268, 335, 670, 737, 1340, 1474, 1481, 2948, 2962, 3685, 5924, 7370, 7405, 14740, 14810, 16291, 29620, 32582, 65164, 81455, 99227, 162910, 198454, 325820, 396908, 496135, 992270, 1091497, 1984540, 2182994, 4365988, 5457485, 10914970, 21829940]

約数ペア:

[(1, 21829940), (2, 10914970), (4, 5457485), (5, 4365988), (10, 2182994), (11, 1984540), (20, 1091497), (22, 992270), (44, 496135), (55, 396908), (67, 325820), (110, 198454), (134, 162910), (220, 99227), (268, 81455), (335, 65164), (670, 32582), (737, 29620), (1340, 16291), (1474, 14810), (1481, 14740), (2948, 7405), (2962, 7370), (3685, 5924)]