21643398

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{463}}^1$

素因数の和:538

約数の個数: 72

約数和(自身を含む): 55699488

約数和(自身を除く): 34056090

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 53, 63, 98, 106, 126, 147, 159, 294, 318, 371, 441, 463, 477, 742, 882, 926, 954, 1113, 1389, 2226, 2597, 2778, 3241, 3339, 4167, 5194, 6482, 6678, 7791, 8334, 9723, 15582, 19446, 22687, 23373, 24539, 29169, 45374, 46746, 49078, 58338, 68061, 73617, 136122, 147234, 171773, 204183, 220851, 343546, 408366, 441702, 515319, 1030638, 1202411, 1545957, 2404822, 3091914, 3607233, 7214466, 10821699, 21643398]

約数ペア:

[(1, 21643398), (2, 10821699), (3, 7214466), (6, 3607233), (7, 3091914), (9, 2404822), (14, 1545957), (18, 1202411), (21, 1030638), (42, 515319), (49, 441702), (53, 408366), (63, 343546), (98, 220851), (106, 204183), (126, 171773), (147, 147234), (159, 136122), (294, 73617), (318, 68061), (371, 58338), (441, 49078), (463, 46746), (477, 45374), (742, 29169), (882, 24539), (926, 23373), (954, 22687), (1113, 19446), (1389, 15582), (2226, 9723), (2597, 8334), (2778, 7791), (3241, 6678), (3339, 6482), (4167, 5194)]