21057792

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{3917}}^1$

素因数の和:3943

約数の個数: 72

約数和(自身を含む): 64067136

約数和(自身を除く): 43009344

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 168, 192, 224, 256, 336, 384, 448, 672, 768, 896, 1344, 1792, 2688, 3917, 5376, 7834, 11751, 15668, 23502, 27419, 31336, 47004, 54838, 62672, 82257, 94008, 109676, 125344, 164514, 188016, 219352, 250688, 329028, 376032, 438704, 501376, 658056, 752064, 877408, 1002752, 1316112, 1504128, 1754816, 2632224, 3008256, 3509632, 5264448, 7019264, 10528896, 21057792]

約数ペア:

[(1, 21057792), (2, 10528896), (3, 7019264), (4, 5264448), (6, 3509632), (7, 3008256), (8, 2632224), (12, 1754816), (14, 1504128), (16, 1316112), (21, 1002752), (24, 877408), (28, 752064), (32, 658056), (42, 501376), (48, 438704), (56, 376032), (64, 329028), (84, 250688), (96, 219352), (112, 188016), (128, 164514), (168, 125344), (192, 109676), (224, 94008), (256, 82257), (336, 62672), (384, 54838), (448, 47004), (672, 31336), (768, 27419), (896, 23502), (1344, 15668), (1792, 11751), (2688, 7834), (3917, 5376)]