245997654

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{9109}}^1$

素因数の和:9764

約数の個数: 32

約数和(自身を含む): 563216640

約数和(自身を除く): 317218986

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 643, 1286, 1929, 3858, 4501, 9002, 9109, 13503, 18218, 27006, 27327, 54654, 63763, 127526, 191289, 382578, 5857087, 11714174, 17571261, 35142522, 40999609, 81999218, 122998827, 245997654]

約数ペア:

[(1, 245997654), (2, 122998827), (3, 81999218), (6, 40999609), (7, 35142522), (14, 17571261), (21, 11714174), (42, 5857087), (643, 382578), (1286, 191289), (1929, 127526), (3858, 63763), (4501, 54654), (9002, 27327), (9109, 27006), (13503, 18218)]