20120592009

素因数分解:

$3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{857}}^1\times {\mathrm{7121}}^1$

素因数の和:8145

約数の個数: 32

約数和(自身を含む): 30895577856

約数和(自身を除く): 10774985847

約数列:

[1, 3, 7, 21, 157, 471, 857, 1099, 2571, 3297, 5999, 7121, 17997, 21363, 49847, 134549, 149541, 403647, 941843, 1117997, 2825529, 3353991, 6102697, 7825979, 18308091, 23477937, 42718879, 128156637, 958123429, 2874370287, 6706864003, 20120592009]

約数ペア:

[(1, 20120592009), (3, 6706864003), (7, 2874370287), (21, 958123429), (157, 128156637), (471, 42718879), (857, 23477937), (1099, 18308091), (2571, 7825979), (3297, 6102697), (5999, 3353991), (7121, 2825529), (17997, 1117997), (21363, 941843), (49847, 403647), (134549, 149541)]