21343035

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:208

約数の個数: 64

約数和(自身を含む): 41287680

約数和(自身を除く): 19944645

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 79, 83, 93, 105, 155, 217, 237, 249, 395, 415, 465, 553, 581, 651, 1085, 1185, 1245, 1659, 1743, 2449, 2573, 2765, 2905, 3255, 6557, 7347, 7719, 8295, 8715, 12245, 12865, 17143, 18011, 19671, 32785, 36735, 38595, 45899, 51429, 54033, 85715, 90055, 98355, 137697, 203267, 229495, 257145, 270165, 609801, 688485, 1016335, 1422869, 3049005, 4268607, 7114345, 21343035]

約数ペア:

[(1, 21343035), (3, 7114345), (5, 4268607), (7, 3049005), (15, 1422869), (21, 1016335), (31, 688485), (35, 609801), (79, 270165), (83, 257145), (93, 229495), (105, 203267), (155, 137697), (217, 98355), (237, 90055), (249, 85715), (395, 54033), (415, 51429), (465, 45899), (553, 38595), (581, 36735), (651, 32785), (1085, 19671), (1185, 18011), (1245, 17143), (1659, 12865), (1743, 12245), (2449, 8715), (2573, 8295), (2765, 7719), (2905, 7347), (3255, 6557)]