21411404

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{241}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 45534720

約数和(自身を除く): 24123316

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 167, 241, 266, 334, 482, 532, 668, 964, 1169, 1687, 2338, 3173, 3374, 4579, 4676, 6346, 6748, 9158, 12692, 18316, 22211, 32053, 40247, 44422, 64106, 80494, 88844, 128212, 160988, 281729, 563458, 764693, 1126916, 1529386, 3058772, 5352851, 10705702, 21411404]

約数ペア:

[(1, 21411404), (2, 10705702), (4, 5352851), (7, 3058772), (14, 1529386), (19, 1126916), (28, 764693), (38, 563458), (76, 281729), (133, 160988), (167, 128212), (241, 88844), (266, 80494), (334, 64106), (482, 44422), (532, 40247), (668, 32053), (964, 22211), (1169, 18316), (1687, 12692), (2338, 9158), (3173, 6748), (3374, 6346), (4579, 4676)]