20791204

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1409}}^1$

素因数の和:1468

約数の個数: 48

約数和(自身を含む): 45480960

約数和(自身を除く): 24689756

約数列:

[1, 2, 4, 7, 14, 17, 28, 31, 34, 62, 68, 119, 124, 217, 238, 434, 476, 527, 868, 1054, 1409, 2108, 2818, 3689, 5636, 7378, 9863, 14756, 19726, 23953, 39452, 43679, 47906, 87358, 95812, 167671, 174716, 305753, 335342, 611506, 670684, 742543, 1223012, 1485086, 2970172, 5197801, 10395602, 20791204]

約数ペア:

[(1, 20791204), (2, 10395602), (4, 5197801), (7, 2970172), (14, 1485086), (17, 1223012), (28, 742543), (31, 670684), (34, 611506), (62, 335342), (68, 305753), (119, 174716), (124, 167671), (217, 95812), (238, 87358), (434, 47906), (476, 43679), (527, 39452), (868, 23953), (1054, 19726), (1409, 14756), (2108, 9863), (2818, 7378), (3689, 5636)]