21172424

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:382

約数の個数: 64

約数和(自身を含む): 49459200

約数和(自身を除く): 28286776

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 127, 182, 229, 254, 364, 458, 508, 728, 889, 916, 1016, 1603, 1651, 1778, 1832, 2977, 3206, 3302, 3556, 5954, 6412, 6604, 7112, 11557, 11908, 12824, 13208, 20839, 23114, 23816, 29083, 41678, 46228, 58166, 83356, 92456, 116332, 166712, 203581, 232664, 378079, 407162, 756158, 814324, 1512316, 1628648, 2646553, 3024632, 5293106, 10586212, 21172424]

約数ペア:

[(1, 21172424), (2, 10586212), (4, 5293106), (7, 3024632), (8, 2646553), (13, 1628648), (14, 1512316), (26, 814324), (28, 756158), (52, 407162), (56, 378079), (91, 232664), (104, 203581), (127, 166712), (182, 116332), (229, 92456), (254, 83356), (364, 58166), (458, 46228), (508, 41678), (728, 29083), (889, 23816), (916, 23114), (1016, 20839), (1603, 13208), (1651, 12824), (1778, 11908), (1832, 11557), (2977, 7112), (3206, 6604), (3302, 6412), (3556, 5954)]