21398412

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{947}}^1$

素因数の和:1230

約数の個数: 48

約数和(自身を含む): 57335040

約数和(自身を除く): 35936628

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 269, 538, 807, 947, 1076, 1614, 1883, 1894, 2841, 3228, 3766, 3788, 5649, 5682, 6629, 7532, 11298, 11364, 13258, 19887, 22596, 26516, 39774, 79548, 254743, 509486, 764229, 1018972, 1528458, 1783201, 3056916, 3566402, 5349603, 7132804, 10699206, 21398412]

約数ペア:

[(1, 21398412), (2, 10699206), (3, 7132804), (4, 5349603), (6, 3566402), (7, 3056916), (12, 1783201), (14, 1528458), (21, 1018972), (28, 764229), (42, 509486), (84, 254743), (269, 79548), (538, 39774), (807, 26516), (947, 22596), (1076, 19887), (1614, 13258), (1883, 11364), (1894, 11298), (2841, 7532), (3228, 6629), (3766, 5682), (3788, 5649)]