21539538

素因数分解:

$2^1\times 3^2\times {\mathrm{173}}^1\times {\mathrm{6917}}^1$

素因数の和:7098

約数の個数: 24

約数和(自身を含む): 46945548

約数和(自身を除く): 25406010

約数列:

[1, 2, 3, 6, 9, 18, 173, 346, 519, 1038, 1557, 3114, 6917, 13834, 20751, 41502, 62253, 124506, 1196641, 2393282, 3589923, 7179846, 10769769, 21539538]

約数ペア:

[(1, 21539538), (2, 10769769), (3, 7179846), (6, 3589923), (9, 2393282), (18, 1196641), (173, 124506), (346, 62253), (519, 41502), (1038, 20751), (1557, 13834), (3114, 6917)]