21555768

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1171}}^1$

素因数の和:1252

約数の個数: 64

約数和(自身を含む): 59068800

約数和(自身を除く): 37513032

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 59, 78, 104, 118, 156, 177, 236, 312, 354, 472, 708, 767, 1171, 1416, 1534, 2301, 2342, 3068, 3513, 4602, 4684, 6136, 7026, 9204, 9368, 14052, 15223, 18408, 28104, 30446, 45669, 60892, 69089, 91338, 121784, 138178, 182676, 207267, 276356, 365352, 414534, 552712, 829068, 898157, 1658136, 1796314, 2694471, 3592628, 5388942, 7185256, 10777884, 21555768]

約数ペア:

[(1, 21555768), (2, 10777884), (3, 7185256), (4, 5388942), (6, 3592628), (8, 2694471), (12, 1796314), (13, 1658136), (24, 898157), (26, 829068), (39, 552712), (52, 414534), (59, 365352), (78, 276356), (104, 207267), (118, 182676), (156, 138178), (177, 121784), (236, 91338), (312, 69089), (354, 60892), (472, 45669), (708, 30446), (767, 28104), (1171, 18408), (1416, 15223), (1534, 14052), (2301, 9368), (2342, 9204), (3068, 7026), (3513, 6136), (4602, 4684)]