21978192

素因数分解:

$2^4\times 3^1\times {\mathrm{71}}^1\times {\mathrm{6449}}^1$

素因数の和:6531

約数の個数: 40

約数和(自身を含む): 57585600

約数和(自身を除く): 35607408

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 71, 142, 213, 284, 426, 568, 852, 1136, 1704, 3408, 6449, 12898, 19347, 25796, 38694, 51592, 77388, 103184, 154776, 309552, 457879, 915758, 1373637, 1831516, 2747274, 3663032, 5494548, 7326064, 10989096, 21978192]

約数ペア:

[(1, 21978192), (2, 10989096), (3, 7326064), (4, 5494548), (6, 3663032), (8, 2747274), (12, 1831516), (16, 1373637), (24, 915758), (48, 457879), (71, 309552), (142, 154776), (213, 103184), (284, 77388), (426, 51592), (568, 38694), (852, 25796), (1136, 19347), (1704, 12898), (3408, 6449)]