21160430

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{557}}^1$

素因数の和:724

約数の個数: 32

約数和(自身を含む): 39774240

約数和(自身を除く): 18613810

約数列:

[1, 2, 5, 10, 29, 58, 131, 145, 262, 290, 557, 655, 1114, 1310, 2785, 3799, 5570, 7598, 16153, 18995, 32306, 37990, 72967, 80765, 145934, 161530, 364835, 729670, 2116043, 4232086, 10580215, 21160430]

約数ペア:

[(1, 21160430), (2, 10580215), (5, 4232086), (10, 2116043), (29, 729670), (58, 364835), (131, 161530), (145, 145934), (262, 80765), (290, 72967), (557, 37990), (655, 32306), (1114, 18995), (1310, 16153), (2785, 7598), (3799, 5570)]