21642368

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{809}}^1$

素因数の和:853

約数の個数: 64

約数和(自身を含む): 49572000

約数和(自身を除く): 27929632

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 64, 76, 88, 128, 152, 176, 209, 304, 352, 418, 608, 704, 809, 836, 1216, 1408, 1618, 1672, 2432, 3236, 3344, 6472, 6688, 8899, 12944, 13376, 15371, 17798, 25888, 26752, 30742, 35596, 51776, 61484, 71192, 103552, 122968, 142384, 169081, 245936, 284768, 338162, 491872, 569536, 676324, 983744, 1139072, 1352648, 1967488, 2705296, 5410592, 10821184, 21642368]

約数ペア:

[(1, 21642368), (2, 10821184), (4, 5410592), (8, 2705296), (11, 1967488), (16, 1352648), (19, 1139072), (22, 983744), (32, 676324), (38, 569536), (44, 491872), (64, 338162), (76, 284768), (88, 245936), (128, 169081), (152, 142384), (176, 122968), (209, 103552), (304, 71192), (352, 61484), (418, 51776), (608, 35596), (704, 30742), (809, 26752), (836, 25888), (1216, 17798), (1408, 15371), (1618, 13376), (1672, 12944), (2432, 8899), (3236, 6688), (3344, 6472)]