21907030901

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{317}}^1\times {\mathrm{659}}^1$

素因数の和:1265

約数の個数: 32

約数和(自身を含む): 25628866560

約数和(自身を除く): 3721835659

約数列:

[1, 7, 71, 211, 317, 497, 659, 1477, 2219, 4613, 14981, 22507, 46789, 66887, 104867, 139049, 157549, 208903, 327523, 468209, 973343, 1462321, 4748977, 9872479, 14832113, 33242839, 44078533, 69107353, 103824791, 308549731, 3129575843, 21907030901]

約数ペア:

[(1, 21907030901), (7, 3129575843), (71, 308549731), (211, 103824791), (317, 69107353), (497, 44078533), (659, 33242839), (1477, 14832113), (2219, 9872479), (4613, 4748977), (14981, 1462321), (22507, 973343), (46789, 468209), (66887, 327523), (104867, 208903), (139049, 157549)]