21291240064

素因数分解:

$2^7\times {\mathrm{107}}^1\times {\mathrm{1554559}}^1$

素因数の和:1554680

約数の個数: 32

約数和(自身を含む): 42812582400

約数和(自身を除く): 21521342336

約数列:

[1, 2, 4, 8, 16, 32, 64, 107, 128, 214, 428, 856, 1712, 3424, 6848, 13696, 1554559, 3109118, 6218236, 12436472, 24872944, 49745888, 99491776, 166337813, 198983552, 332675626, 665351252, 1330702504, 2661405008, 5322810016, 10645620032, 21291240064]

約数ペア:

[(1, 21291240064), (2, 10645620032), (4, 5322810016), (8, 2661405008), (16, 1330702504), (32, 665351252), (64, 332675626), (107, 198983552), (128, 166337813), (214, 99491776), (428, 49745888), (856, 24872944), (1712, 12436472), (3424, 6218236), (6848, 3109118), (13696, 1554559)]