21352552

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 45964800

約数和(自身を除く): 24612248

約数列:

[1, 2, 4, 8, 13, 26, 31, 37, 52, 62, 74, 104, 124, 148, 179, 248, 296, 358, 403, 481, 716, 806, 962, 1147, 1432, 1612, 1924, 2294, 2327, 3224, 3848, 4588, 4654, 5549, 6623, 9176, 9308, 11098, 13246, 14911, 18616, 22196, 26492, 29822, 44392, 52984, 59644, 72137, 86099, 119288, 144274, 172198, 205313, 288548, 344396, 410626, 577096, 688792, 821252, 1642504, 2669069, 5338138, 10676276, 21352552]

約数ペア:

[(1, 21352552), (2, 10676276), (4, 5338138), (8, 2669069), (13, 1642504), (26, 821252), (31, 688792), (37, 577096), (52, 410626), (62, 344396), (74, 288548), (104, 205313), (124, 172198), (148, 144274), (179, 119288), (248, 86099), (296, 72137), (358, 59644), (403, 52984), (481, 44392), (716, 29822), (806, 26492), (962, 22196), (1147, 18616), (1432, 14911), (1612, 13246), (1924, 11098), (2294, 9308), (2327, 9176), (3224, 6623), (3848, 5549), (4588, 4654)]