21481776

素因数分解:

$2^4\times 3^2\times {\mathrm{241}}^1\times {\mathrm{619}}^1$

素因数の和:874

約数の個数: 60

約数和(自身を含む): 60466120

約数和(自身を除く): 38984344

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 241, 482, 619, 723, 964, 1238, 1446, 1857, 1928, 2169, 2476, 2892, 3714, 3856, 4338, 4952, 5571, 5784, 7428, 8676, 9904, 11142, 11568, 14856, 17352, 22284, 29712, 34704, 44568, 89136, 149179, 298358, 447537, 596716, 895074, 1193432, 1342611, 1790148, 2386864, 2685222, 3580296, 5370444, 7160592, 10740888, 21481776]

約数ペア:

[(1, 21481776), (2, 10740888), (3, 7160592), (4, 5370444), (6, 3580296), (8, 2685222), (9, 2386864), (12, 1790148), (16, 1342611), (18, 1193432), (24, 895074), (36, 596716), (48, 447537), (72, 298358), (144, 149179), (241, 89136), (482, 44568), (619, 34704), (723, 29712), (964, 22284), (1238, 17352), (1446, 14856), (1857, 11568), (1928, 11142), (2169, 9904), (2476, 8676), (2892, 7428), (3714, 5784), (3856, 5571), (4338, 4952)]