28118916

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{241}}^1\times {\mathrm{463}}^1$

素因数の和:721

約数の個数: 72

約数和(自身を含む): 81745664

約数和(自身を除く): 53626748

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 241, 252, 463, 482, 723, 926, 964, 1389, 1446, 1687, 1852, 2169, 2778, 2892, 3241, 3374, 4167, 4338, 5061, 5556, 6482, 6748, 8334, 8676, 9723, 10122, 12964, 15183, 16668, 19446, 20244, 29169, 30366, 38892, 58338, 60732, 111583, 116676, 223166, 334749, 446332, 669498, 781081, 1004247, 1338996, 1562162, 2008494, 2343243, 3124324, 4016988, 4686486, 7029729, 9372972, 14059458, 28118916]

約数ペア:

[(1, 28118916), (2, 14059458), (3, 9372972), (4, 7029729), (6, 4686486), (7, 4016988), (9, 3124324), (12, 2343243), (14, 2008494), (18, 1562162), (21, 1338996), (28, 1004247), (36, 781081), (42, 669498), (63, 446332), (84, 334749), (126, 223166), (241, 116676), (252, 111583), (463, 60732), (482, 58338), (723, 38892), (926, 30366), (964, 29169), (1389, 20244), (1446, 19446), (1687, 16668), (1852, 15183), (2169, 12964), (2778, 10122), (2892, 9723), (3241, 8676), (3374, 8334), (4167, 6748), (4338, 6482), (5061, 5556)]