20973484

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 44025856

約数和(自身を除く): 23052372

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 73, 124, 146, 217, 292, 331, 434, 511, 662, 868, 1022, 1324, 2044, 2263, 2317, 4526, 4634, 9052, 9268, 10261, 15841, 20522, 24163, 31682, 41044, 48326, 63364, 71827, 96652, 143654, 169141, 287308, 338282, 676564, 749053, 1498106, 2996212, 5243371, 10486742, 20973484]

約数ペア:

[(1, 20973484), (2, 10486742), (4, 5243371), (7, 2996212), (14, 1498106), (28, 749053), (31, 676564), (62, 338282), (73, 287308), (124, 169141), (146, 143654), (217, 96652), (292, 71827), (331, 63364), (434, 48326), (511, 41044), (662, 31682), (868, 24163), (1022, 20522), (1324, 15841), (2044, 10261), (2263, 9268), (2317, 9052), (4526, 4634)]