21595672

素因数分解:

$2^3\times 7^2\times {\mathrm{89}}^1\times {\mathrm{619}}^1$

素因数の和:728

約数の個数: 48

約数和(自身を含む): 47709000

約数和(自身を除く): 26113328

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 89, 98, 178, 196, 356, 392, 619, 623, 712, 1238, 1246, 2476, 2492, 4333, 4361, 4952, 4984, 8666, 8722, 17332, 17444, 30331, 34664, 34888, 55091, 60662, 110182, 121324, 220364, 242648, 385637, 440728, 771274, 1542548, 2699459, 3085096, 5398918, 10797836, 21595672]

約数ペア:

[(1, 21595672), (2, 10797836), (4, 5398918), (7, 3085096), (8, 2699459), (14, 1542548), (28, 771274), (49, 440728), (56, 385637), (89, 242648), (98, 220364), (178, 121324), (196, 110182), (356, 60662), (392, 55091), (619, 34888), (623, 34664), (712, 30331), (1238, 17444), (1246, 17332), (2476, 8722), (2492, 8666), (4333, 4984), (4361, 4952)]