21650380

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 46884096

約数和(自身を除く): 25233716

約数列:

[1, 2, 4, 5, 10, 20, 67, 107, 134, 151, 214, 268, 302, 335, 428, 535, 604, 670, 755, 1070, 1340, 1510, 2140, 3020, 7169, 10117, 14338, 16157, 20234, 28676, 32314, 35845, 40468, 50585, 64628, 71690, 80785, 101170, 143380, 161570, 202340, 323140, 1082519, 2165038, 4330076, 5412595, 10825190, 21650380]

約数ペア:

[(1, 21650380), (2, 10825190), (4, 5412595), (5, 4330076), (10, 2165038), (20, 1082519), (67, 323140), (107, 202340), (134, 161570), (151, 143380), (214, 101170), (268, 80785), (302, 71690), (335, 64628), (428, 50585), (535, 40468), (604, 35845), (670, 32314), (755, 28676), (1070, 20234), (1340, 16157), (1510, 14338), (2140, 10117), (3020, 7169)]