21954530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{601}}^1$

素因数の和:902

約数の個数: 32

約数和(自身を含む): 42780528

約数和(自身を除く): 20825998

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 281, 562, 601, 1202, 1405, 2810, 3005, 3653, 6010, 7306, 7813, 15626, 18265, 36530, 39065, 78130, 168881, 337762, 844405, 1688810, 2195453, 4390906, 10977265, 21954530]

約数ペア:

[(1, 21954530), (2, 10977265), (5, 4390906), (10, 2195453), (13, 1688810), (26, 844405), (65, 337762), (130, 168881), (281, 78130), (562, 39065), (601, 36530), (1202, 18265), (1405, 15626), (2810, 7813), (3005, 7306), (3653, 6010)]