19769265

素因数分解:

$3^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 36324288

約数和(自身を除く): 16555023

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 81, 135, 159, 243, 265, 307, 405, 477, 795, 921, 1215, 1431, 1535, 2385, 2763, 4293, 4605, 7155, 8289, 12879, 13815, 16271, 21465, 24867, 41445, 48813, 64395, 74601, 81355, 124335, 146439, 244065, 373005, 439317, 732195, 1317951, 2196585, 3953853, 6589755, 19769265]

約数ペア:

[(1, 19769265), (3, 6589755), (5, 3953853), (9, 2196585), (15, 1317951), (27, 732195), (45, 439317), (53, 373005), (81, 244065), (135, 146439), (159, 124335), (243, 81355), (265, 74601), (307, 64395), (405, 48813), (477, 41445), (795, 24867), (921, 21465), (1215, 16271), (1431, 13815), (1535, 12879), (2385, 8289), (2763, 7155), (4293, 4605)]