19446340

素因数分解:

$2^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{1489}}^1$

素因数の和:2151

約数の個数: 24

約数和(自身を含む): 40927320

約数和(自身を除く): 21480980

約数列:

[1, 2, 4, 5, 10, 20, 653, 1306, 1489, 2612, 2978, 3265, 5956, 6530, 7445, 13060, 14890, 29780, 972317, 1944634, 3889268, 4861585, 9723170, 19446340]

約数ペア:

[(1, 19446340), (2, 9723170), (4, 4861585), (5, 3889268), (10, 1944634), (20, 972317), (653, 29780), (1306, 14890), (1489, 13060), (2612, 7445), (2978, 6530), (3265, 5956)]