21017746

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{1259}}^1$

素因数の和:1769

約数の個数: 16

約数和(自身を含む): 33475680

約数和(自身を除く): 12457934

約数列:

[1, 2, 17, 34, 491, 982, 1259, 2518, 8347, 16694, 21403, 42806, 618169, 1236338, 10508873, 21017746]

約数ペア:

[(1, 21017746), (2, 10508873), (17, 1236338), (34, 618169), (491, 42806), (982, 21403), (1259, 16694), (2518, 8347)]