20901216

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1637}}^1$

素因数の和:1676

約数の個数: 96

約数和(自身を含む): 66044160

約数和(自身を除く): 45142944

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 19, 21, 24, 28, 32, 38, 42, 48, 56, 57, 76, 84, 96, 112, 114, 133, 152, 168, 224, 228, 266, 304, 336, 399, 456, 532, 608, 672, 798, 912, 1064, 1596, 1637, 1824, 2128, 3192, 3274, 4256, 4911, 6384, 6548, 9822, 11459, 12768, 13096, 19644, 22918, 26192, 31103, 34377, 39288, 45836, 52384, 62206, 68754, 78576, 91672, 93309, 124412, 137508, 157152, 183344, 186618, 217721, 248824, 275016, 366688, 373236, 435442, 497648, 550032, 653163, 746472, 870884, 995296, 1100064, 1306326, 1492944, 1741768, 2612652, 2985888, 3483536, 5225304, 6967072, 10450608, 20901216]

約数ペア:

[(1, 20901216), (2, 10450608), (3, 6967072), (4, 5225304), (6, 3483536), (7, 2985888), (8, 2612652), (12, 1741768), (14, 1492944), (16, 1306326), (19, 1100064), (21, 995296), (24, 870884), (28, 746472), (32, 653163), (38, 550032), (42, 497648), (48, 435442), (56, 373236), (57, 366688), (76, 275016), (84, 248824), (96, 217721), (112, 186618), (114, 183344), (133, 157152), (152, 137508), (168, 124412), (224, 93309), (228, 91672), (266, 78576), (304, 68754), (336, 62206), (399, 52384), (456, 45836), (532, 39288), (608, 34377), (672, 31103), (798, 26192), (912, 22918), (1064, 19644), (1596, 13096), (1637, 12768), (1824, 11459), (2128, 9822), (3192, 6548), (3274, 6384), (4256, 4911)]