18671856

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{911}}^1$

素因数の和:990

約数の個数: 80

約数和(自身を含む): 56091648

約数和(自身を除く): 37419792

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 61, 84, 112, 122, 168, 183, 244, 336, 366, 427, 488, 732, 854, 911, 976, 1281, 1464, 1708, 1822, 2562, 2733, 2928, 3416, 3644, 5124, 5466, 6377, 6832, 7288, 10248, 10932, 12754, 14576, 19131, 20496, 21864, 25508, 38262, 43728, 51016, 55571, 76524, 102032, 111142, 153048, 166713, 222284, 306096, 333426, 388997, 444568, 666852, 777994, 889136, 1166991, 1333704, 1555988, 2333982, 2667408, 3111976, 4667964, 6223952, 9335928, 18671856]

約数ペア:

[(1, 18671856), (2, 9335928), (3, 6223952), (4, 4667964), (6, 3111976), (7, 2667408), (8, 2333982), (12, 1555988), (14, 1333704), (16, 1166991), (21, 889136), (24, 777994), (28, 666852), (42, 444568), (48, 388997), (56, 333426), (61, 306096), (84, 222284), (112, 166713), (122, 153048), (168, 111142), (183, 102032), (244, 76524), (336, 55571), (366, 51016), (427, 43728), (488, 38262), (732, 25508), (854, 21864), (911, 20496), (976, 19131), (1281, 14576), (1464, 12754), (1708, 10932), (1822, 10248), (2562, 7288), (2733, 6832), (2928, 6377), (3416, 5466), (3644, 5124)]