21878932

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 42674688

約数和(自身を除く): 20795756

約数列:

[1, 2, 4, 17, 31, 34, 62, 68, 97, 107, 124, 194, 214, 388, 428, 527, 1054, 1649, 1819, 2108, 3007, 3298, 3317, 3638, 6014, 6596, 6634, 7276, 10379, 12028, 13268, 20758, 41516, 51119, 56389, 102238, 112778, 176443, 204476, 225556, 321749, 352886, 643498, 705772, 1286996, 5469733, 10939466, 21878932]

約数ペア:

[(1, 21878932), (2, 10939466), (4, 5469733), (17, 1286996), (31, 705772), (34, 643498), (62, 352886), (68, 321749), (97, 225556), (107, 204476), (124, 176443), (194, 112778), (214, 102238), (388, 56389), (428, 51119), (527, 41516), (1054, 20758), (1649, 13268), (1819, 12028), (2108, 10379), (3007, 7276), (3298, 6634), (3317, 6596), (3638, 6014)]