21045504

素因数分解:

$2^8\times 3^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:495

約数の個数: 72

約数和(自身を含む): 56986720

約数和(自身を除く): 35941216

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 67, 96, 128, 134, 192, 201, 256, 268, 384, 402, 409, 536, 768, 804, 818, 1072, 1227, 1608, 1636, 2144, 2454, 3216, 3272, 4288, 4908, 6432, 6544, 8576, 9816, 12864, 13088, 17152, 19632, 25728, 26176, 27403, 39264, 51456, 52352, 54806, 78528, 82209, 104704, 109612, 157056, 164418, 219224, 314112, 328836, 438448, 657672, 876896, 1315344, 1753792, 2630688, 3507584, 5261376, 7015168, 10522752, 21045504]

約数ペア:

[(1, 21045504), (2, 10522752), (3, 7015168), (4, 5261376), (6, 3507584), (8, 2630688), (12, 1753792), (16, 1315344), (24, 876896), (32, 657672), (48, 438448), (64, 328836), (67, 314112), (96, 219224), (128, 164418), (134, 157056), (192, 109612), (201, 104704), (256, 82209), (268, 78528), (384, 54806), (402, 52352), (409, 51456), (536, 39264), (768, 27403), (804, 26176), (818, 25728), (1072, 19632), (1227, 17152), (1608, 13088), (1636, 12864), (2144, 9816), (2454, 8576), (3216, 6544), (3272, 6432), (4288, 4908)]