18995908

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{317}}^1$

素因数の和:603

約数の個数: 24

約数和(自身を含む): 33977664

約数和(自身を除く): 14981756

約数列:

[1, 2, 4, 71, 142, 211, 284, 317, 422, 634, 844, 1268, 14981, 22507, 29962, 45014, 59924, 66887, 90028, 133774, 267548, 4748977, 9497954, 18995908]

約数ペア:

[(1, 18995908), (2, 9497954), (4, 4748977), (71, 267548), (142, 133774), (211, 90028), (284, 66887), (317, 59924), (422, 45014), (634, 29962), (844, 22507), (1268, 14981)]