21101514

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{853}}^1$

素因数の和:915

約数の個数: 64

約数和(自身を含む): 52469760

約数和(自身を除く): 31368246

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 31, 38, 42, 57, 62, 93, 114, 133, 186, 217, 266, 399, 434, 589, 651, 798, 853, 1178, 1302, 1706, 1767, 2559, 3534, 4123, 5118, 5971, 8246, 11942, 12369, 16207, 17913, 24738, 26443, 32414, 35826, 48621, 52886, 79329, 97242, 113449, 158658, 185101, 226898, 340347, 370202, 502417, 555303, 680694, 1004834, 1110606, 1507251, 3014502, 3516919, 7033838, 10550757, 21101514]

約数ペア:

[(1, 21101514), (2, 10550757), (3, 7033838), (6, 3516919), (7, 3014502), (14, 1507251), (19, 1110606), (21, 1004834), (31, 680694), (38, 555303), (42, 502417), (57, 370202), (62, 340347), (93, 226898), (114, 185101), (133, 158658), (186, 113449), (217, 97242), (266, 79329), (399, 52886), (434, 48621), (589, 35826), (651, 32414), (798, 26443), (853, 24738), (1178, 17913), (1302, 16207), (1706, 12369), (1767, 11942), (2559, 8246), (3534, 5971), (4123, 5118)]