19537995

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 32212224

約数和(自身を除く): 12674229

約数列:

[1, 3, 5, 15, 61, 131, 163, 183, 305, 393, 489, 655, 815, 915, 1965, 2445, 7991, 9943, 21353, 23973, 29829, 39955, 49715, 64059, 106765, 119865, 149145, 320295, 1302533, 3907599, 6512665, 19537995]

約数ペア:

[(1, 19537995), (3, 6512665), (5, 3907599), (15, 1302533), (61, 320295), (131, 149145), (163, 119865), (183, 106765), (305, 64059), (393, 49715), (489, 39955), (655, 29829), (815, 23973), (915, 21353), (1965, 9943), (2445, 7991)]