21645376

素因数分解:

$2^6\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:239

約数の個数: 56

約数和(自身を含む): 44997624

約数和(自身を除く): 23352248

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 73, 82, 113, 146, 164, 226, 292, 328, 452, 584, 656, 904, 1168, 1312, 1808, 2336, 2624, 2993, 3616, 4633, 4672, 5986, 7232, 8249, 9266, 11972, 16498, 18532, 23944, 32996, 37064, 47888, 65992, 74128, 95776, 131984, 148256, 191552, 263968, 296512, 338209, 527936, 676418, 1352836, 2705672, 5411344, 10822688, 21645376]

約数ペア:

[(1, 21645376), (2, 10822688), (4, 5411344), (8, 2705672), (16, 1352836), (32, 676418), (41, 527936), (64, 338209), (73, 296512), (82, 263968), (113, 191552), (146, 148256), (164, 131984), (226, 95776), (292, 74128), (328, 65992), (452, 47888), (584, 37064), (656, 32996), (904, 23944), (1168, 18532), (1312, 16498), (1808, 11972), (2336, 9266), (2624, 8249), (2993, 7232), (3616, 5986), (4633, 4672)]