21980616

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{18691}}^1$

素因数の和:18714

約数の個数: 48

約数和(自身を含む): 63926640

約数和(自身を除く): 41946024

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 98, 147, 168, 196, 294, 392, 588, 1176, 18691, 37382, 56073, 74764, 112146, 130837, 149528, 224292, 261674, 392511, 448584, 523348, 785022, 915859, 1046696, 1570044, 1831718, 2747577, 3140088, 3663436, 5495154, 7326872, 10990308, 21980616]

約数ペア:

[(1, 21980616), (2, 10990308), (3, 7326872), (4, 5495154), (6, 3663436), (7, 3140088), (8, 2747577), (12, 1831718), (14, 1570044), (21, 1046696), (24, 915859), (28, 785022), (42, 523348), (49, 448584), (56, 392511), (84, 261674), (98, 224292), (147, 149528), (168, 130837), (196, 112146), (294, 74764), (392, 56073), (588, 37382), (1176, 18691)]