21393456

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{63671}}^1$

素因数の和:63689

約数の個数: 40

約数和(自身を含む): 63162624

約数和(自身を除く): 41769168

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 63671, 127342, 191013, 254684, 382026, 445697, 509368, 764052, 891394, 1018736, 1337091, 1528104, 1782788, 2674182, 3056208, 3565576, 5348364, 7131152, 10696728, 21393456]

約数ペア:

[(1, 21393456), (2, 10696728), (3, 7131152), (4, 5348364), (6, 3565576), (7, 3056208), (8, 2674182), (12, 1782788), (14, 1528104), (16, 1337091), (21, 1018736), (24, 891394), (28, 764052), (42, 509368), (48, 445697), (56, 382026), (84, 254684), (112, 191013), (168, 127342), (336, 63671)]