21008790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21221}}^1$

素因数の和:21245

約数の個数: 48

約数和(自身を含む): 59591376

約数和(自身を除く): 38582586

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 21221, 42442, 63663, 106105, 127326, 190989, 212210, 233431, 318315, 381978, 466862, 636630, 700293, 954945, 1167155, 1400586, 1909890, 2100879, 2334310, 3501465, 4201758, 7002930, 10504395, 21008790]

約数ペア:

[(1, 21008790), (2, 10504395), (3, 7002930), (5, 4201758), (6, 3501465), (9, 2334310), (10, 2100879), (11, 1909890), (15, 1400586), (18, 1167155), (22, 954945), (30, 700293), (33, 636630), (45, 466862), (55, 381978), (66, 318315), (90, 233431), (99, 212210), (110, 190989), (165, 127326), (198, 106105), (330, 63663), (495, 42442), (990, 21221)]