21918117935

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{347}}^1\times {\mathrm{2003}}^1$

素因数の和:2432

約数の個数: 64

約数和(自身を含む): 32537521152

約数和(自身を除く): 10619403217

約数列:

[1, 5, 7, 17, 35, 53, 85, 119, 265, 347, 371, 595, 901, 1735, 1855, 2003, 2429, 4505, 5899, 6307, 10015, 12145, 14021, 18391, 29495, 31535, 34051, 41293, 70105, 91955, 106159, 128737, 170255, 206465, 238357, 312647, 530795, 643685, 695041, 743113, 1191785, 1563235, 1804703, 2188529, 3475205, 3715565, 4865287, 9023515, 10942645, 11815697, 12632921, 24326435, 36837173, 59078485, 63164605, 82709879, 184185865, 257860211, 413549395, 626231941, 1289301055, 3131159705, 4383623587, 21918117935]

約数ペア:

[(1, 21918117935), (5, 4383623587), (7, 3131159705), (17, 1289301055), (35, 626231941), (53, 413549395), (85, 257860211), (119, 184185865), (265, 82709879), (347, 63164605), (371, 59078485), (595, 36837173), (901, 24326435), (1735, 12632921), (1855, 11815697), (2003, 10942645), (2429, 9023515), (4505, 4865287), (5899, 3715565), (6307, 3475205), (10015, 2188529), (12145, 1804703), (14021, 1563235), (18391, 1191785), (29495, 743113), (31535, 695041), (34051, 643685), (41293, 530795), (70105, 312647), (91955, 238357), (106159, 206465), (128737, 170255)]