20021690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{661}}^1$

素因数の和:914

約数の個数: 32

約数和(自身を含む): 39036816

約数和(自身を除く): 19015126

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 233, 466, 661, 1165, 1322, 2330, 3029, 3305, 6058, 6610, 8593, 15145, 17186, 30290, 42965, 85930, 154013, 308026, 770065, 1540130, 2002169, 4004338, 10010845, 20021690]

約数ペア:

[(1, 20021690), (2, 10010845), (5, 4004338), (10, 2002169), (13, 1540130), (26, 770065), (65, 308026), (130, 154013), (233, 85930), (466, 42965), (661, 30290), (1165, 17186), (1322, 15145), (2330, 8593), (3029, 6610), (3305, 6058)]