20971438

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:348

約数の個数: 32

約数和(自身を含む): 34898688

約数和(自身を除く): 13927250

約数列:

[1, 2, 17, 31, 34, 62, 101, 197, 202, 394, 527, 1054, 1717, 3131, 3349, 3434, 6107, 6262, 6698, 12214, 19897, 39794, 53227, 103819, 106454, 207638, 338249, 616807, 676498, 1233614, 10485719, 20971438]

約数ペア:

[(1, 20971438), (2, 10485719), (17, 1233614), (31, 676498), (34, 616807), (62, 338249), (101, 207638), (197, 106454), (202, 103819), (394, 53227), (527, 39794), (1054, 19897), (1717, 12214), (3131, 6698), (3349, 6262), (3434, 6107)]