21304820979

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{47581}}^1$

素因数の和:47732

約数の個数: 48

約数和(自身を含む): 34293299040

約数和(自身を除く): 12988478061

約数列:

[1, 3, 9, 13, 39, 43, 89, 117, 129, 267, 387, 559, 801, 1157, 1677, 3471, 3827, 5031, 10413, 11481, 34443, 47581, 49751, 142743, 149253, 428229, 447759, 618553, 1855659, 2045983, 4234709, 5566977, 6137949, 12704127, 18413847, 26597779, 38112381, 55051217, 79793337, 165153651, 182092487, 239380011, 495460953, 546277461, 1638832383, 2367202331, 7101606993, 21304820979]

約数ペア:

[(1, 21304820979), (3, 7101606993), (9, 2367202331), (13, 1638832383), (39, 546277461), (43, 495460953), (89, 239380011), (117, 182092487), (129, 165153651), (267, 79793337), (387, 55051217), (559, 38112381), (801, 26597779), (1157, 18413847), (1677, 12704127), (3471, 6137949), (3827, 5566977), (5031, 4234709), (10413, 2045983), (11481, 1855659), (34443, 618553), (47581, 447759), (49751, 428229), (142743, 149253)]