21632716

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:231

約数の個数: 72

約数和(自身を含む): 47911920

約数和(自身を除く): 26279204

約数列:

[1, 2, 4, 7, 14, 19, 28, 37, 38, 49, 74, 76, 98, 133, 148, 157, 196, 259, 266, 314, 518, 532, 628, 703, 931, 1036, 1099, 1406, 1813, 1862, 2198, 2812, 2983, 3626, 3724, 4396, 4921, 5809, 5966, 7252, 7693, 9842, 11618, 11932, 15386, 19684, 20881, 23236, 30772, 34447, 40663, 41762, 68894, 81326, 83524, 110371, 137788, 146167, 162652, 220742, 284641, 292334, 441484, 569282, 584668, 772597, 1138564, 1545194, 3090388, 5408179, 10816358, 21632716]

約数ペア:

[(1, 21632716), (2, 10816358), (4, 5408179), (7, 3090388), (14, 1545194), (19, 1138564), (28, 772597), (37, 584668), (38, 569282), (49, 441484), (74, 292334), (76, 284641), (98, 220742), (133, 162652), (148, 146167), (157, 137788), (196, 110371), (259, 83524), (266, 81326), (314, 68894), (518, 41762), (532, 40663), (628, 34447), (703, 30772), (931, 23236), (1036, 20881), (1099, 19684), (1406, 15386), (1813, 11932), (1862, 11618), (2198, 9842), (2812, 7693), (2983, 7252), (3626, 5966), (3724, 5809), (4396, 4921)]