19747930

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{63703}}^1$

素因数の和:63741

約数の個数: 16

約数和(自身を含む): 36693504

約数和(自身を除く): 16945574

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 63703, 127406, 318515, 637030, 1974793, 3949586, 9873965, 19747930]

約数ペア:

[(1, 19747930), (2, 9873965), (5, 3949586), (10, 1974793), (31, 637030), (62, 318515), (155, 127406), (310, 63703)]