20603728

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{359}}^1$

素因数の和:595

約数の個数: 40

約数和(自身を含む): 42586560

約数和(自身を除く): 21982832

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 211, 272, 359, 422, 718, 844, 1436, 1688, 2872, 3376, 3587, 5744, 6103, 7174, 12206, 14348, 24412, 28696, 48824, 57392, 75749, 97648, 151498, 302996, 605992, 1211984, 1287733, 2575466, 5150932, 10301864, 20603728]

約数ペア:

[(1, 20603728), (2, 10301864), (4, 5150932), (8, 2575466), (16, 1287733), (17, 1211984), (34, 605992), (68, 302996), (136, 151498), (211, 97648), (272, 75749), (359, 57392), (422, 48824), (718, 28696), (844, 24412), (1436, 14348), (1688, 12206), (2872, 7174), (3376, 6103), (3587, 5744)]