19981404

素因数分解:

$2^2\times 3^5\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:417

約数の個数: 72

約数和(自身を含む): 53395888

約数和(自身を除く): 33414484

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 61, 81, 108, 122, 162, 183, 243, 244, 324, 337, 366, 486, 549, 674, 732, 972, 1011, 1098, 1348, 1647, 2022, 2196, 3033, 3294, 4044, 4941, 6066, 6588, 9099, 9882, 12132, 14823, 18198, 19764, 20557, 27297, 29646, 36396, 41114, 54594, 59292, 61671, 81891, 82228, 109188, 123342, 163782, 185013, 246684, 327564, 370026, 555039, 740052, 1110078, 1665117, 2220156, 3330234, 4995351, 6660468, 9990702, 19981404]

約数ペア:

[(1, 19981404), (2, 9990702), (3, 6660468), (4, 4995351), (6, 3330234), (9, 2220156), (12, 1665117), (18, 1110078), (27, 740052), (36, 555039), (54, 370026), (61, 327564), (81, 246684), (108, 185013), (122, 163782), (162, 123342), (183, 109188), (243, 82228), (244, 81891), (324, 61671), (337, 59292), (366, 54594), (486, 41114), (549, 36396), (674, 29646), (732, 27297), (972, 20557), (1011, 19764), (1098, 18198), (1348, 14823), (1647, 12132), (2022, 9882), (2196, 9099), (3033, 6588), (3294, 6066), (4044, 4941)]