21209584

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3257}}^1$

素因数の和:3313

約数の個数: 40

約数和(自身を含む): 46055088

約数和(自身を除く): 24845504

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 74, 88, 148, 176, 296, 407, 592, 814, 1628, 3256, 3257, 6512, 6514, 13028, 26056, 35827, 52112, 71654, 120509, 143308, 241018, 286616, 482036, 573232, 964072, 1325599, 1928144, 2651198, 5302396, 10604792, 21209584]

約数ペア:

[(1, 21209584), (2, 10604792), (4, 5302396), (8, 2651198), (11, 1928144), (16, 1325599), (22, 964072), (37, 573232), (44, 482036), (74, 286616), (88, 241018), (148, 143308), (176, 120509), (296, 71654), (407, 52112), (592, 35827), (814, 26056), (1628, 13028), (3256, 6514), (3257, 6512)]