21078014776

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{546289}}^1$

素因数の和:546368

約数の個数: 64

約数和(自身を含む): 49559428800

約数和(自身を除く): 28481414024

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 53, 56, 91, 104, 106, 182, 212, 364, 371, 424, 689, 728, 742, 1378, 1484, 2756, 2968, 4823, 5512, 9646, 19292, 38584, 546289, 1092578, 2185156, 3824023, 4370312, 7101757, 7648046, 14203514, 15296092, 28407028, 28953317, 30592184, 49712299, 56814056, 57906634, 99424598, 115813268, 198849196, 202673219, 231626536, 376393121, 397698392, 405346438, 752786242, 810692876, 1505572484, 1621385752, 2634751847, 3011144968, 5269503694, 10539007388, 21078014776]

約数ペア:

[(1, 21078014776), (2, 10539007388), (4, 5269503694), (7, 3011144968), (8, 2634751847), (13, 1621385752), (14, 1505572484), (26, 810692876), (28, 752786242), (52, 405346438), (53, 397698392), (56, 376393121), (91, 231626536), (104, 202673219), (106, 198849196), (182, 115813268), (212, 99424598), (364, 57906634), (371, 56814056), (424, 49712299), (689, 30592184), (728, 28953317), (742, 28407028), (1378, 15296092), (1484, 14203514), (2756, 7648046), (2968, 7101757), (4823, 4370312), (5512, 3824023), (9646, 2185156), (19292, 1092578), (38584, 546289)]