21880068

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{293}}^1$

素因数の和:441

約数の個数: 72

約数和(自身を含む): 60060672

約数和(自身を除く): 38180604

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 127, 147, 196, 254, 293, 294, 381, 508, 586, 588, 762, 879, 889, 1172, 1524, 1758, 1778, 2051, 2667, 3516, 3556, 4102, 5334, 6153, 6223, 8204, 10668, 12306, 12446, 14357, 18669, 24612, 24892, 28714, 37211, 37338, 43071, 57428, 74422, 74676, 86142, 111633, 148844, 172284, 223266, 260477, 446532, 520954, 781431, 1041908, 1562862, 1823339, 3125724, 3646678, 5470017, 7293356, 10940034, 21880068]

約数ペア:

[(1, 21880068), (2, 10940034), (3, 7293356), (4, 5470017), (6, 3646678), (7, 3125724), (12, 1823339), (14, 1562862), (21, 1041908), (28, 781431), (42, 520954), (49, 446532), (84, 260477), (98, 223266), (127, 172284), (147, 148844), (196, 111633), (254, 86142), (293, 74676), (294, 74422), (381, 57428), (508, 43071), (586, 37338), (588, 37211), (762, 28714), (879, 24892), (889, 24612), (1172, 18669), (1524, 14357), (1758, 12446), (1778, 12306), (2051, 10668), (2667, 8204), (3516, 6223), (3556, 6153), (4102, 5334)]