21968955

素因数分解:

$3^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{461}}^1$

素因数の和:828

約数の個数: 32

約数和(自身を含む): 39251520

約数和(自身を除く): 17282565

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 353, 461, 1059, 1383, 1765, 2305, 3177, 4149, 5295, 6915, 9531, 12447, 15885, 20745, 47655, 62235, 162733, 488199, 813665, 1464597, 2440995, 4393791, 7322985, 21968955]

約数ペア:

[(1, 21968955), (3, 7322985), (5, 4393791), (9, 2440995), (15, 1464597), (27, 813665), (45, 488199), (135, 162733), (353, 62235), (461, 47655), (1059, 20745), (1383, 15885), (1765, 12447), (2305, 9531), (3177, 6915), (4149, 5295)]