21095970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:264

約数の個数: 96

約数和(自身を含む): 59885568

約数和(自身を除く): 38789598

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 113, 127, 147, 210, 226, 245, 254, 294, 339, 381, 490, 565, 635, 678, 735, 762, 791, 889, 1130, 1270, 1470, 1582, 1695, 1778, 1905, 2373, 2667, 3390, 3810, 3955, 4445, 4746, 5334, 5537, 6223, 7910, 8890, 11074, 11865, 12446, 13335, 14351, 16611, 18669, 23730, 26670, 27685, 28702, 31115, 33222, 37338, 43053, 55370, 62230, 71755, 83055, 86106, 93345, 100457, 143510, 166110, 186690, 200914, 215265, 301371, 430530, 502285, 602742, 703199, 1004570, 1406398, 1506855, 2109597, 3013710, 3515995, 4219194, 7031990, 10547985, 21095970]

約数ペア:

[(1, 21095970), (2, 10547985), (3, 7031990), (5, 4219194), (6, 3515995), (7, 3013710), (10, 2109597), (14, 1506855), (15, 1406398), (21, 1004570), (30, 703199), (35, 602742), (42, 502285), (49, 430530), (70, 301371), (98, 215265), (105, 200914), (113, 186690), (127, 166110), (147, 143510), (210, 100457), (226, 93345), (245, 86106), (254, 83055), (294, 71755), (339, 62230), (381, 55370), (490, 43053), (565, 37338), (635, 33222), (678, 31115), (735, 28702), (762, 27685), (791, 26670), (889, 23730), (1130, 18669), (1270, 16611), (1470, 14351), (1582, 13335), (1695, 12446), (1778, 11865), (1905, 11074), (2373, 8890), (2667, 7910), (3390, 6223), (3810, 5537), (3955, 5334), (4445, 4746)]