19938870

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{31649}}^1$

素因数の和:31669

約数の個数: 48

約数和(自身を含む): 59248800

約数和(自身を除く): 39309930

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 31649, 63298, 94947, 158245, 189894, 221543, 284841, 316490, 443086, 474735, 569682, 664629, 949470, 1107715, 1329258, 1424205, 1993887, 2215430, 2848410, 3323145, 3987774, 6646290, 9969435, 19938870]

約数ペア:

[(1, 19938870), (2, 9969435), (3, 6646290), (5, 3987774), (6, 3323145), (7, 2848410), (9, 2215430), (10, 1993887), (14, 1424205), (15, 1329258), (18, 1107715), (21, 949470), (30, 664629), (35, 569682), (42, 474735), (45, 443086), (63, 316490), (70, 284841), (90, 221543), (105, 189894), (126, 158245), (210, 94947), (315, 63298), (630, 31649)]