21517608

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{487}}^1$

素因数の和:766

約数の個数: 64

約数和(自身を含む): 61839360

約数和(自身を除く): 40321752

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 263, 487, 526, 789, 974, 1052, 1461, 1578, 1841, 1948, 2104, 2922, 3156, 3409, 3682, 3896, 5523, 5844, 6312, 6818, 7364, 10227, 11046, 11688, 13636, 14728, 20454, 22092, 27272, 40908, 44184, 81816, 128081, 256162, 384243, 512324, 768486, 896567, 1024648, 1536972, 1793134, 2689701, 3073944, 3586268, 5379402, 7172536, 10758804, 21517608]

約数ペア:

[(1, 21517608), (2, 10758804), (3, 7172536), (4, 5379402), (6, 3586268), (7, 3073944), (8, 2689701), (12, 1793134), (14, 1536972), (21, 1024648), (24, 896567), (28, 768486), (42, 512324), (56, 384243), (84, 256162), (168, 128081), (263, 81816), (487, 44184), (526, 40908), (789, 27272), (974, 22092), (1052, 20454), (1461, 14728), (1578, 13636), (1841, 11688), (1948, 11046), (2104, 10227), (2922, 7364), (3156, 6818), (3409, 6312), (3682, 5844), (3896, 5523)]