21721167378

素因数分解:

$2^1\times 3^2\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{72533}}^1$

素因数の和:72799

約数の個数: 48

約数和(自身を含む): 47795844096

約数和(自身を除く): 26074676718

約数列:

[1, 2, 3, 6, 9, 18, 127, 131, 254, 262, 381, 393, 762, 786, 1143, 1179, 2286, 2358, 16637, 33274, 49911, 72533, 99822, 145066, 149733, 217599, 299466, 435198, 652797, 1305594, 9211691, 9501823, 18423382, 19003646, 27635073, 28505469, 55270146, 57010938, 82905219, 85516407, 165810438, 171032814, 1206731521, 2413463042, 3620194563, 7240389126, 10860583689, 21721167378]

約数ペア:

[(1, 21721167378), (2, 10860583689), (3, 7240389126), (6, 3620194563), (9, 2413463042), (18, 1206731521), (127, 171032814), (131, 165810438), (254, 85516407), (262, 82905219), (381, 57010938), (393, 55270146), (762, 28505469), (786, 27635073), (1143, 19003646), (1179, 18423382), (2286, 9501823), (2358, 9211691), (16637, 1305594), (33274, 652797), (49911, 435198), (72533, 299466), (99822, 217599), (145066, 149733)]