21062704

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{773}}^1$

素因数の和:925

約数の個数: 40

約数和(自身を含む): 44340912

約数和(自身を除く): 23278208

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 131, 208, 262, 524, 773, 1048, 1546, 1703, 2096, 3092, 3406, 6184, 6812, 10049, 12368, 13624, 20098, 27248, 40196, 80392, 101263, 160784, 202526, 405052, 810104, 1316419, 1620208, 2632838, 5265676, 10531352, 21062704]

約数ペア:

[(1, 21062704), (2, 10531352), (4, 5265676), (8, 2632838), (13, 1620208), (16, 1316419), (26, 810104), (52, 405052), (104, 202526), (131, 160784), (208, 101263), (262, 80392), (524, 40196), (773, 27248), (1048, 20098), (1546, 13624), (1703, 12368), (2096, 10049), (3092, 6812), (3406, 6184)]