21517944

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{367}}^1$

素因数の和:732

約数の個数: 64

約数和(自身を含む): 61824000

約数和(自身を除く): 40306056

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 349, 367, 698, 734, 1047, 1101, 1396, 1468, 2094, 2202, 2443, 2569, 2792, 2936, 4188, 4404, 4886, 5138, 7329, 7707, 8376, 8808, 9772, 10276, 14658, 15414, 19544, 20552, 29316, 30828, 58632, 61656, 128083, 256166, 384249, 512332, 768498, 896581, 1024664, 1536996, 1793162, 2689743, 3073992, 3586324, 5379486, 7172648, 10758972, 21517944]

約数ペア:

[(1, 21517944), (2, 10758972), (3, 7172648), (4, 5379486), (6, 3586324), (7, 3073992), (8, 2689743), (12, 1793162), (14, 1536996), (21, 1024664), (24, 896581), (28, 768498), (42, 512332), (56, 384249), (84, 256166), (168, 128083), (349, 61656), (367, 58632), (698, 30828), (734, 29316), (1047, 20552), (1101, 19544), (1396, 15414), (1468, 14658), (2094, 10276), (2202, 9772), (2443, 8808), (2569, 8376), (2792, 7707), (2936, 7329), (4188, 5138), (4404, 4886)]