21387072

素因数分解:

$2^6\times 3^1\times 7^1\times {\mathrm{15913}}^1$

素因数の和:15935

約数の個数: 56

約数和(自身を含む): 64674496

約数和(自身を除く): 43287424

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 168, 192, 224, 336, 448, 672, 1344, 15913, 31826, 47739, 63652, 95478, 111391, 127304, 190956, 222782, 254608, 334173, 381912, 445564, 509216, 668346, 763824, 891128, 1018432, 1336692, 1527648, 1782256, 2673384, 3055296, 3564512, 5346768, 7129024, 10693536, 21387072]

約数ペア:

[(1, 21387072), (2, 10693536), (3, 7129024), (4, 5346768), (6, 3564512), (7, 3055296), (8, 2673384), (12, 1782256), (14, 1527648), (16, 1336692), (21, 1018432), (24, 891128), (28, 763824), (32, 668346), (42, 509216), (48, 445564), (56, 381912), (64, 334173), (84, 254608), (96, 222782), (112, 190956), (168, 127304), (192, 111391), (224, 95478), (336, 63652), (448, 47739), (672, 31826), (1344, 15913)]