1900523979

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{442703}}^1$

素因数の和:442768

約数の個数: 20

約数和(自身を含む): 2892627936

約数和(自身を除く): 992103957

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 442703, 1328109, 3984327, 11952981, 23463259, 35858943, 70389777, 211169331, 633507993, 1900523979]

約数ペア:

[(1, 1900523979), (3, 633507993), (9, 211169331), (27, 70389777), (53, 35858943), (81, 23463259), (159, 11952981), (477, 3984327), (1431, 1328109), (4293, 442703)]