21064369768

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{28807}}^1$

素因数の和:28994

約数の個数: 64

約数和(自身を含む): 43557696000

約数和(自身を除く): 22493326232

約数列:

[1, 2, 4, 8, 13, 26, 52, 79, 89, 104, 158, 178, 316, 356, 632, 712, 1027, 1157, 2054, 2314, 4108, 4628, 7031, 8216, 9256, 14062, 28124, 28807, 56248, 57614, 91403, 115228, 182806, 230456, 365612, 374491, 731224, 748982, 1497964, 2275753, 2563823, 2995928, 4551506, 5127646, 9103012, 10255292, 18206024, 20510584, 29584789, 33329699, 59169578, 66659398, 118339156, 133318796, 202542017, 236678312, 266637592, 405084034, 810168068, 1620336136, 2633046221, 5266092442, 10532184884, 21064369768]

約数ペア:

[(1, 21064369768), (2, 10532184884), (4, 5266092442), (8, 2633046221), (13, 1620336136), (26, 810168068), (52, 405084034), (79, 266637592), (89, 236678312), (104, 202542017), (158, 133318796), (178, 118339156), (316, 66659398), (356, 59169578), (632, 33329699), (712, 29584789), (1027, 20510584), (1157, 18206024), (2054, 10255292), (2314, 9103012), (4108, 5127646), (4628, 4551506), (7031, 2995928), (8216, 2563823), (9256, 2275753), (14062, 1497964), (28124, 748982), (28807, 731224), (56248, 374491), (57614, 365612), (91403, 230456), (115228, 182806)]