20213088406

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{278563}}^1$

素因数の和:278716

約数の個数: 32

約数和(自身を含む): 35620535808

約数和(自身を除く): 15407447402

約数列:

[1, 2, 7, 14, 71, 73, 142, 146, 497, 511, 994, 1022, 5183, 10366, 36281, 72562, 278563, 557126, 1949941, 3899882, 19777973, 20335099, 39555946, 40670198, 138445811, 142345693, 276891622, 284691386, 1443792029, 2887584058, 10106544203, 20213088406]

約数ペア:

[(1, 20213088406), (2, 10106544203), (7, 2887584058), (14, 1443792029), (71, 284691386), (73, 276891622), (142, 142345693), (146, 138445811), (497, 40670198), (511, 39555946), (994, 20335099), (1022, 19777973), (5183, 3899882), (10366, 1949941), (36281, 557126), (72562, 278563)]