16661988

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1787}}^1$

素因数の和:1841

約数の個数: 72

約数和(自身を含む): 49463232

約数和(自身を除く): 32801244

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 37, 42, 63, 74, 84, 111, 126, 148, 222, 252, 259, 333, 444, 518, 666, 777, 1036, 1332, 1554, 1787, 2331, 3108, 3574, 4662, 5361, 7148, 9324, 10722, 12509, 16083, 21444, 25018, 32166, 37527, 50036, 64332, 66119, 75054, 112581, 132238, 150108, 198357, 225162, 264476, 396714, 450324, 462833, 595071, 793428, 925666, 1190142, 1388499, 1851332, 2380284, 2776998, 4165497, 5553996, 8330994, 16661988]

約数ペア:

[(1, 16661988), (2, 8330994), (3, 5553996), (4, 4165497), (6, 2776998), (7, 2380284), (9, 1851332), (12, 1388499), (14, 1190142), (18, 925666), (21, 793428), (28, 595071), (36, 462833), (37, 450324), (42, 396714), (63, 264476), (74, 225162), (84, 198357), (111, 150108), (126, 132238), (148, 112581), (222, 75054), (252, 66119), (259, 64332), (333, 50036), (444, 37527), (518, 32166), (666, 25018), (777, 21444), (1036, 16083), (1332, 12509), (1554, 10722), (1787, 9324), (2331, 7148), (3108, 5361), (3574, 4662)]