21989230328

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2179}}^1\times {\mathrm{5107}}^1$

素因数の和:7324

約数の個数: 64

約数和(自身を含む): 46768848000

約数和(自身を除く): 24779617672

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 2179, 4358, 5107, 8716, 10214, 17432, 20428, 28327, 40856, 41401, 56654, 66391, 82802, 97033, 113308, 132782, 165604, 194066, 226616, 265564, 331208, 388132, 531128, 538213, 776264, 1076426, 1261429, 2152852, 2522858, 4305704, 5045716, 10091432, 11128153, 22256306, 44512612, 89025224, 144665989, 211434907, 289331978, 422869814, 578663956, 845739628, 1157327912, 1691479256, 2748653791, 5497307582, 10994615164, 21989230328]

約数ペア:

[(1, 21989230328), (2, 10994615164), (4, 5497307582), (8, 2748653791), (13, 1691479256), (19, 1157327912), (26, 845739628), (38, 578663956), (52, 422869814), (76, 289331978), (104, 211434907), (152, 144665989), (247, 89025224), (494, 44512612), (988, 22256306), (1976, 11128153), (2179, 10091432), (4358, 5045716), (5107, 4305704), (8716, 2522858), (10214, 2152852), (17432, 1261429), (20428, 1076426), (28327, 776264), (40856, 538213), (41401, 531128), (56654, 388132), (66391, 331208), (82802, 265564), (97033, 226616), (113308, 194066), (132782, 165604)]