21689614

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{2803}}^1$

素因数の和:2931

約数の個数: 16

約数和(自身を含む): 33614352

約数和(自身を除く): 11924738

約数列:

[1, 2, 53, 73, 106, 146, 2803, 3869, 5606, 7738, 148559, 204619, 297118, 409238, 10844807, 21689614]

約数ペア:

[(1, 21689614), (2, 10844807), (53, 409238), (73, 297118), (106, 204619), (146, 148559), (2803, 7738), (3869, 5606)]