21664524

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{739}}^1$

素因数の和:1102

約数の個数: 48

約数和(自身を含む): 58016000

約数和(自身を除く): 36351476

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 349, 698, 739, 1047, 1396, 1478, 2094, 2217, 2443, 2956, 4188, 4434, 4886, 5173, 7329, 8868, 9772, 10346, 14658, 15519, 20692, 29316, 31038, 62076, 257911, 515822, 773733, 1031644, 1547466, 1805377, 3094932, 3610754, 5416131, 7221508, 10832262, 21664524]

約数ペア:

[(1, 21664524), (2, 10832262), (3, 7221508), (4, 5416131), (6, 3610754), (7, 3094932), (12, 1805377), (14, 1547466), (21, 1031644), (28, 773733), (42, 515822), (84, 257911), (349, 62076), (698, 31038), (739, 29316), (1047, 20692), (1396, 15519), (1478, 14658), (2094, 10346), (2217, 9772), (2443, 8868), (2956, 7329), (4188, 5173), (4434, 4886)]