21725704

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2713}}^1$

素因数の和:2750

約数の個数: 64

約数和(自身を含む): 54714240

約数和(自身を除く): 32988536

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 182, 286, 308, 364, 572, 616, 728, 1001, 1144, 2002, 2713, 4004, 5426, 8008, 10852, 18991, 21704, 29843, 35269, 37982, 59686, 70538, 75964, 119372, 141076, 151928, 208901, 238744, 246883, 282152, 387959, 417802, 493766, 775918, 835604, 987532, 1551836, 1671208, 1975064, 2715713, 3103672, 5431426, 10862852, 21725704]

約数ペア:

[(1, 21725704), (2, 10862852), (4, 5431426), (7, 3103672), (8, 2715713), (11, 1975064), (13, 1671208), (14, 1551836), (22, 987532), (26, 835604), (28, 775918), (44, 493766), (52, 417802), (56, 387959), (77, 282152), (88, 246883), (91, 238744), (104, 208901), (143, 151928), (154, 141076), (182, 119372), (286, 75964), (308, 70538), (364, 59686), (572, 37982), (616, 35269), (728, 29843), (1001, 21704), (1144, 18991), (2002, 10852), (2713, 8008), (4004, 5426)]