21605373

素因数分解:

$3^8\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:150

約数の個数: 36

約数和(自身を含む): 33656220

約数和(自身を除く): 12050847

約数列:

[1, 3, 9, 27, 37, 81, 89, 111, 243, 267, 333, 729, 801, 999, 2187, 2403, 2997, 3293, 6561, 7209, 8991, 9879, 21627, 26973, 29637, 64881, 80919, 88911, 194643, 242757, 266733, 583929, 800199, 2400597, 7201791, 21605373]

約数ペア:

[(1, 21605373), (3, 7201791), (9, 2400597), (27, 800199), (37, 583929), (81, 266733), (89, 242757), (111, 194643), (243, 88911), (267, 80919), (333, 64881), (729, 29637), (801, 26973), (999, 21627), (2187, 9879), (2403, 8991), (2997, 7209), (3293, 6561)]