21492669128

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{563}}^1\times {\mathrm{35879}}^1$

素因数の和:36474

約数の個数: 64

約数和(自身を含む): 48567168000

約数和(自身を除く): 27074498872

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 563, 1064, 1126, 2252, 3941, 4504, 7882, 10697, 15764, 21394, 31528, 35879, 42788, 71758, 74879, 85576, 143516, 149758, 251153, 287032, 299516, 502306, 599032, 681701, 1004612, 1363402, 2009224, 2726804, 4771907, 5453608, 9543814, 19087628, 20199877, 38175256, 40399754, 80799508, 141399139, 161599016, 282798278, 383797663, 565596556, 767595326, 1131193112, 1535190652, 2686583641, 3070381304, 5373167282, 10746334564, 21492669128]

約数ペア:

[(1, 21492669128), (2, 10746334564), (4, 5373167282), (7, 3070381304), (8, 2686583641), (14, 1535190652), (19, 1131193112), (28, 767595326), (38, 565596556), (56, 383797663), (76, 282798278), (133, 161599016), (152, 141399139), (266, 80799508), (532, 40399754), (563, 38175256), (1064, 20199877), (1126, 19087628), (2252, 9543814), (3941, 5453608), (4504, 4771907), (7882, 2726804), (10697, 2009224), (15764, 1363402), (21394, 1004612), (31528, 681701), (35879, 599032), (42788, 502306), (71758, 299516), (74879, 287032), (85576, 251153), (143516, 149758)]