21830578

素因数分解:

$2^1\times 7^3\times {\mathrm{11}}^2\times {\mathrm{263}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 42134400

約数和(自身を除く): 20303822

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 121, 154, 242, 263, 343, 526, 539, 686, 847, 1078, 1694, 1841, 2893, 3682, 3773, 5786, 5929, 7546, 11858, 12887, 20251, 25774, 31823, 40502, 41503, 63646, 83006, 90209, 141757, 180418, 222761, 283514, 445522, 992299, 1559327, 1984598, 3118654, 10915289, 21830578]

約数ペア:

[(1, 21830578), (2, 10915289), (7, 3118654), (11, 1984598), (14, 1559327), (22, 992299), (49, 445522), (77, 283514), (98, 222761), (121, 180418), (154, 141757), (242, 90209), (263, 83006), (343, 63646), (526, 41503), (539, 40502), (686, 31823), (847, 25774), (1078, 20251), (1694, 12887), (1841, 11858), (2893, 7546), (3682, 5929), (3773, 5786)]