21906976

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7523}}^1$

素因数の和:7553

約数の個数: 48

約数和(自身を含む): 53089344

約数和(自身を除く): 31182368

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 7523, 15046, 30092, 52661, 60184, 97799, 105322, 120368, 195598, 210644, 240736, 391196, 421288, 684593, 782392, 842576, 1369186, 1564784, 1685152, 2738372, 3129568, 5476744, 10953488, 21906976]

約数ペア:

[(1, 21906976), (2, 10953488), (4, 5476744), (7, 3129568), (8, 2738372), (13, 1685152), (14, 1564784), (16, 1369186), (26, 842576), (28, 782392), (32, 684593), (52, 421288), (56, 391196), (91, 240736), (104, 210644), (112, 195598), (182, 120368), (208, 105322), (224, 97799), (364, 60184), (416, 52661), (728, 30092), (1456, 15046), (2912, 7523)]