19688955

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 37836288

約数和(自身を除く): 18147333

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 67, 137, 143, 165, 195, 201, 335, 411, 429, 685, 715, 737, 871, 1005, 1507, 1781, 2055, 2145, 2211, 2613, 3685, 4355, 4521, 5343, 7535, 8905, 9179, 9581, 11055, 13065, 19591, 22605, 26715, 27537, 28743, 45895, 47905, 58773, 97955, 100969, 119327, 137685, 143715, 293865, 302907, 357981, 504845, 596635, 1312597, 1514535, 1789905, 3937791, 6562985, 19688955]

約数ペア:

[(1, 19688955), (3, 6562985), (5, 3937791), (11, 1789905), (13, 1514535), (15, 1312597), (33, 596635), (39, 504845), (55, 357981), (65, 302907), (67, 293865), (137, 143715), (143, 137685), (165, 119327), (195, 100969), (201, 97955), (335, 58773), (411, 47905), (429, 45895), (685, 28743), (715, 27537), (737, 26715), (871, 22605), (1005, 19591), (1507, 13065), (1781, 11055), (2055, 9581), (2145, 9179), (2211, 8905), (2613, 7535), (3685, 5343), (4355, 4521)]