21418072

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{5023}}^1$

素因数の和:5083

約数の個数: 32

約数和(自身を含む): 44311680

約数和(自身を除く): 22893608

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 104, 164, 328, 533, 1066, 2132, 4264, 5023, 10046, 20092, 40184, 65299, 130598, 205943, 261196, 411886, 522392, 823772, 1647544, 2677259, 5354518, 10709036, 21418072]

約数ペア:

[(1, 21418072), (2, 10709036), (4, 5354518), (8, 2677259), (13, 1647544), (26, 823772), (41, 522392), (52, 411886), (82, 261196), (104, 205943), (164, 130598), (328, 65299), (533, 40184), (1066, 20092), (2132, 10046), (4264, 5023)]